Difference between revisions of "Patent for a Buehnenscheinwerfer, Willy Hagedorn, 1921 (Q31872)"
From CanonBase
a spotlight with a diafragm and mirror.
(Created claim: Publication date (P40): 16 November 1921) | (Removed claim: Canon source Id (P369): 1017, #quickstatements; #temporary_batch_1743590302320) | ||
| (8 intermediate revisions by 2 users not shown) | |||
| description / en | description / en | ||
| - | + | a spotlight with a diafragm and mirror. | |
| Property / Copy available online | |||
| + | |||
| Property / Copy available online: https://worldwide.espacenet.com/patent/search/family/007165068/publication/DE374015C?q=pn%3DDE374015C / rank | |||
| + | Normal rank | ||
| Property / Internal image | |||
| + | |||
| Property / Internal image: DE_374015_C.png / rank | |||
| + | Normal rank | ||
| Property / mentions | |||
| + | |||
| Property / mentions: iris / rank | |||
| + | Normal rank | ||
| Property / Canon documents public id | |||
| + | |||
| Property / Canon documents public id: 1017 / rank | |||
| + | Normal rank | ||
Latest revision as of 10:42, 2 April 2025
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