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US1334337A
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Sprocket-cleaner for film-advancing apparatus
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US1360838A
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Film-reel
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US1407906A
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Projection slide carrier
|
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US1431202A
|
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Electric arc lamp
|
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US1397750A
|
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Belt connection
|
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US1348193A
|
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Reeling apparatus
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US1437209A
|
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Electrical connection clamp
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US1334338A
|
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Film-guide
|
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US1407905A
|
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Motion-picture-shutter-adjusting mechanism
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US1373925A
|
|
Film-expanding pressure-guide
|
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US1383683A
|
|
Universal projector-support
|
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US1329867A
|
|
Variable-speed-transmission device
|
|
US1402274A
|
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Safety drive for motion-picture apparatus
|
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US1346359A
|
|
Projection-lamp house
|
|
US1402273A
|
|
Threading and looping device
|
|
US1346358A
|
|
Signal device for kinetoscopes
|
|
US1358806A
|
|
Automatic film-break detector for motion-picture machines
|
|
US1361123A
|
|
Automatic film-threader
|
|
US1275636A
|
|
Film-take-up device.
|
|
US1346356A
|
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Automatic reel-threading device
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