Patent for Bühnenprojektionseinrichtung, Geyling, Lisatz, 1926 (Q38416)

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Method for short trow backdrop projection with corrected slides.

Method for short trow backdrop projection with corrected slides.
  • AT103438B
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English
Patent for Bühnenprojektionseinrichtung, Geyling, Lisatz, 1926
Method for short trow backdrop projection with corrected slides.
  • AT103438B

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