Difference between revisions of "Patent for a Beleuchtungseinrichtung für Bildwerfer, Ludwig Pani, 1931 (Q31922)"
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Revision as of 08:26, 13 March 2025
No description defined
| Language | Label | Description | Also known as |
|---|---|---|---|
| English |
Patent for a Beleuchtungseinrichtung für Bildwerfer, Ludwig Pani, 1931
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No description defined
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Statements
10 November 1931
0 references
