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- 07:45, 31 July 2023 diff hist +423 Patent for Lighting control circuits, George Izenour, 1949 (Q31881) Created claim: mentions (P78): thyraton dimmer (Q12964) current
- 07:23, 31 July 2023 diff hist +399 Fred Foster (Q30848) Created claim: Source URL (P64): https://stagelight.home.blog/2019/09/25/fred-foster-the-spark-behind-the-lights/ current
- 07:23, 31 July 2023 diff hist +403 Jim Bornhorst (Q31867) Created claim: Source URL (P64): https://stagelight.home.blog/2019/09/26/jim-bornhorst-and-vari-lite/
- 07:22, 31 July 2023 diff hist +398 Augustin-Jean Fresnel (Q31885) Created claim: Source URL (P64): https://stagelight.home.blog/2019/09/26/augustine-jean-fresnel/ current
- 07:21, 31 July 2023 diff hist +424 fresnel lens (Q3192) Created claim: inventor (P267): Augustin-Jean Fresnel (Q31885)
- 07:20, 31 July 2023 diff hist +512 Augustin-Jean Fresnel (Q31885) Created claim: Date of death (P31): 14 July 1827
- 07:19, 31 July 2023 diff hist +512 Augustin-Jean Fresnel (Q31885) Created claim: date of birth (P30): 10 May 1788
- 07:19, 31 July 2023 diff hist +419 Augustin-Jean Fresnel (Q31885) Created claim: country of citizenship (P83): France (Q510)
- 07:19, 31 July 2023 diff hist +353 Augustin-Jean Fresnel (Q31885) Created claim: Image (P2): Augustin Fresnel.jpg
- 07:18, 31 July 2023 diff hist +417 Augustin-Jean Fresnel (Q31885) Created claim: occupation (P32): engineer (Q59)
- 07:18, 31 July 2023 diff hist +341 Augustin-Jean Fresnel (Q31885) Created claim: Wikidata source (P16): Q187241
- 07:18, 31 July 2023 diff hist +419 Augustin-Jean Fresnel (Q31885) Created claim: Field (P19): General technology (Q342)
- 07:17, 31 July 2023 diff hist +417 Augustin-Jean Fresnel (Q31885) Created claim: Type of information (P11): Person (Q15)
- 07:17, 31 July 2023 diff hist +236 N Augustin-Jean Fresnel (Q31885) Created a new Item: Augustin-Jean Fresnel
- 07:14, 31 July 2023 diff hist +72 Michael Adenau (Q31883) Added [en] description: founder of MA current
- 07:14, 31 July 2023 diff hist +80 Ernst Ebrecht (Q31884) Added [en] description: software developer MA current
- 07:13, 31 July 2023 diff hist +407 MA lighting (Q31882) Created claim: founded by (P54): Ernst Ebrecht (Q31884) current
- 07:13, 31 July 2023 diff hist +417 Ernst Ebrecht (Q31884) Created claim: occupation (P32): engineer (Q59)
- 07:12, 31 July 2023 diff hist +415 Ernst Ebrecht (Q31884) Created claim: Field (P19): lighting and projection (Q7)
- 07:12, 31 July 2023 diff hist +417 Ernst Ebrecht (Q31884) Created claim: Type of information (P11): Person (Q15)
- 07:12, 31 July 2023 diff hist +228 N Ernst Ebrecht (Q31884) Created a new Item: Ernst Ebrecht
- 07:11, 31 July 2023 diff hist +423 MA lighting (Q31882) Created claim: founded by (P54): Michael Adenau (Q31883)
- 07:11, 31 July 2023 diff hist +415 Michael Adenau (Q31883) Created claim: Field (P19): lighting and projection (Q7)
- 07:11, 31 July 2023 diff hist +417 Michael Adenau (Q31883) Created claim: Type of information (P11): Person (Q15)
- 07:11, 31 July 2023 diff hist +229 N Michael Adenau (Q31883) Created a new Item: Michael Adenau
- 07:10, 31 July 2023 diff hist +417 MA lighting (Q31882) Created claim: Country (P29): Germany (Q68)
- 07:10, 31 July 2023 diff hist +405 MA lighting (Q31882) Created claim: Source URL (P64): https://stagelight.home.blog/2019/10/03/ernst-ebrecht-and-the-grandma/
- 07:10, 31 July 2023 diff hist +513 MA lighting (Q31882) Created claim: Founding date (P115): 1983
- 07:10, 31 July 2023 diff hist +415 MA lighting (Q31882) Created claim: Field (P19): lighting and projection (Q7)
- 07:09, 31 July 2023 diff hist +776 MA lighting (Q31882) Created claim: Type of information (P11): business (Q47)
- 07:09, 31 July 2023 diff hist +226 N MA lighting (Q31882) Created a new Item: MA lighting
- 07:05, 31 July 2023 diff hist +333 George Izenour (Q260) Changed claim: archive is kept at (P221): Izenour collection Penn state University (Q31876)
- 07:02, 31 July 2023 diff hist +6 Patent for a Stage lighting apparatus from George Izenour, 1989 (Q31191) Changed [en] label: Patent for a Stage lighting apparatus from George Izenour, 1989
- 07:02, 31 July 2023 diff hist -2 Patent for a Stage lighting apparatus from George Izenour, 1989 (Q31191) Changed [en] description: stage lighting unit including a beam former and beam redirector. The beam redirector allows for the remote control of beam over a large expanse of the stage. current
- 07:01, 31 July 2023 diff hist +22 Patent for Filtered thyratron control circuits, George Izenour, 1951 (Q31880) Changed [en] label: Patent for Filtered thyratron control circuits, George Izenour, 1951 current
- 07:00, 31 July 2023 diff hist +33 Patent for Lighting control circuits, George Izenour, 1949 (Q31881) Changed [en] label: Patent for Lighting control circuits, George Izenour, 1949
- 07:00, 31 July 2023 diff hist +348 Patent for Lighting control circuits, George Izenour, 1949 (Q31881) Created claim: Backup document (P74): US2463463.pdf
- 06:59, 31 July 2023 diff hist 0 N File:US2463463.pdf current
- 06:59, 31 July 2023 diff hist +512 Patent for Lighting control circuits, George Izenour, 1949 (Q31881) Created claim: Publication date (P40): 1 March 1949
- 06:58, 31 July 2023 diff hist +419 Patent for Lighting control circuits, George Izenour, 1949 (Q31881) Created claim: author (P41): George Izenour (Q260)
- 06:58, 31 July 2023 diff hist +379 Patent for Lighting control circuits, George Izenour, 1949 (Q31881) Created claim: Copy available online (P37): https://patents.google.com/patent/US2463463A
- 06:58, 31 July 2023 diff hist +415 Patent for Lighting control circuits, George Izenour, 1949 (Q31881) Created claim: Field (P19): lighting and projection (Q7)
- 06:58, 31 July 2023 diff hist +772 Patent for Lighting control circuits, George Izenour, 1949 (Q31881) Created claim: Type of information (P11): source (Q98)
- 06:57, 31 July 2023 diff hist +240 N Patent for Lighting control circuits, George Izenour, 1949 (Q31881) Created a new Item: Lighting control circuits
- 06:56, 31 July 2023 diff hist +423 Patent for Filtered thyratron control circuits, George Izenour, 1951 (Q31880) Created claim: mentions (P78): thyraton dimmer (Q12964)
- 06:55, 31 July 2023 diff hist +348 Patent for Filtered thyratron control circuits, George Izenour, 1951 (Q31880) Created claim: Backup document (P74): US2548887.pdf
- 06:54, 31 July 2023 diff hist +57 N File:US2548887.pdf https://patents.google.com/patent/US2548887 current
- 06:54, 31 July 2023 diff hist +378 Patent for Filtered thyratron control circuits, George Izenour, 1951 (Q31880) Created claim: Copy available online (P37): https://patents.google.com/patent/US2548887
- 06:53, 31 July 2023 diff hist +512 Patent for Filtered thyratron control circuits, George Izenour, 1951 (Q31880) Created claim: Publication date (P40): 17 April 1951
- 06:53, 31 July 2023 diff hist +419 Patent for Filtered thyratron control circuits, George Izenour, 1951 (Q31880) Created claim: author (P41): George Izenour (Q260)