Difference between revisions of "Patent for a light projecting apparatus by E. W. Sohlberg (Q31174)"

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Patent for a spotlight, controlled from a distance by ropes, and a color chaning device controlled with a electromagnetic step by step control.

(‎Created claim: Backup document (P74): US819611.pdf)
(‎Added [en] description: Patent for a spotlight, controlled from a distance by ropes, and a color chaning device controlled with a electromagnetic step by step control.)
 
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description / endescription / en
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Patent for a spotlight, controlled from a distance by ropes, and a color chaning device controlled with a electromagnetic step by step control.
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Latest revision as of 11:57, 28 July 2023

Patent for a spotlight, controlled from a distance by ropes, and a color chaning device controlled with a electromagnetic step by step control.
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English
Patent for a light projecting apparatus by E. W. Sohlberg
Patent for a spotlight, controlled from a distance by ropes, and a color chaning device controlled with a electromagnetic step by step control.

    Statements

    EDMOND W. SOHLBERG, OF KANSAS CITY, MISSOUR, ASSIGNOR OF TwoTHIRDS TO MART (English)
    0 references
    1 May 1906Gregorian
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