Patent for Verfahren und Vorrichtung insbesondere für Bühnenprojektion. Geyling, Planer & Schrapringer, 1930 (Q38419)
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Patent for method and device, in particular for stage projection. Simultanious projection of 3 slides with one projector.
- AT120161B
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Patent for Verfahren und Vorrichtung insbesondere für Bühnenprojektion. Geyling, Planer & Schrapringer, 1930
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Patent for method and device, in particular for stage projection. Simultanious projection of 3 slides with one projector.
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Statements
10 December 1930
0 references
