film / Title: Projection Apparatus - Lantern Search Results

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1. Bausch & Lomb Optical Co. Projection Apparatus

Date:: 1917
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Date Added:: January 15, 2025
Excerpt:: ; rollers hold film on sprocket without pressing on film; special attachment automatically resets lower loop

2. Bausch & Lomb Optical Co. Projection Apparatus

Date:: 1917
Item Details:: Details and Download Information
Full Page:: Read this page in Context
Highlighting:: Read in Context with Search Highlighted
Date Added:: January 15, 2025
Excerpt:: tension where required and preventing drag on the film; only the film margins come in contact with the