Difference between revisions of "Patent for Lighting control circuits, George Izenour, 1949 (Q31881)"

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(‎Created claim: Publication date (P40): 1 March 1949)
 
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label / enlabel / en
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Lighting control circuits
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Patent for Lighting control circuits, George Izenour, 1949
Property / Backup document
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Property / Backup document: US2463463.pdf / rank
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Normal rank
Property / mentions
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Property / mentions: thyraton dimmer / rank
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Normal rank

Latest revision as of 07:45, 31 July 2023

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Patent for Lighting control circuits, George Izenour, 1949
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