Difference between revisions of "Patent for Einrichtung für Bühnenprojektion, Geyling, 1931 (Q38417)"
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Latest revision as of 09:00, 5 August 2026
a backdrop projector also producing top light for the stage.
- AT125260B
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Patent for Einrichtung für Bühnenprojektion, Geyling, 1931 | a backdrop projector also producing top light for the stage. |
|
Statements
10 November 1931
0 references