Difference between revisions of "Patent for a Buehnenscheinwerfer, Willy Hagedorn, 1921 (Q31872)"
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(Created claim: author (P41): Willy Hagedorn (Q2613)) | (Created claim: Publication date (P40): 16 November 1921) | ||||||||||||||
| Property / Publication date | |||||||||||||||
| + | 16 November 1921Gregorian
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| Property / Publication date: 16 November 1921Gregorian / rank | |||||||||||||||
| + | Normal rank | ||||||||||||||
Revision as of 20:13, 30 July 2023
a spotlight with a diafragm.
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Patent for a Buehnenscheinwerfer, Willy Hagedorn, 1921 | a spotlight with a diafragm. |
Statements
16 November 1921Gregorian
0 references