Difference between revisions of "Patent for a Buehnenscheinwerfer, Willy Hagedorn, 1921 (Q31872)"
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(Created claim: Publication date (P40): 16 November 1921) | (Removed claim: TBU URL II (P24): DE_374015_C.png, #quickstatements; #temporary_batch_1773328109580) | ||
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| - | + | a spotlight with a diafragm and mirror. | |
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Latest revision as of 15:10, 12 March 2026
a spotlight with a diafragm and mirror.
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Patent for a Buehnenscheinwerfer, Willy Hagedorn, 1921 | a spotlight with a diafragm and mirror. |
Statements
16 November 1921Gregorian
0 references