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US2999477A
|
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Fire alarm
|
|
US3041629A
|
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Flushing apparatus
|
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US2701979A
|
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Unit system reader for cumulative microfilm and the like
|
|
US2633057A
|
|
Microfilm camera
|
|
US2638812A
|
|
Lens mounting and film support for microfilm apparatus
|
|
US2606478A
|
|
Microfilm apparatus
|
|
US2538270A
|
|
Film processor
|
|
US2517414A
|
|
Film projector with rotatable turret head
|
|
US2492005A
|
|
Apparatus for duplex photography
|
|
US2538269A
|
|
Combination lens mounting and film support for microfilm apparatus
|
|
US2487476A
|
|
Film feeding device
|
|
US2565088A
|
|
Document camera
|
|
US2564274A
|
|
Film projector with motor-driven film feeding mechanism
|
|
US2493998A
|
|
Combination projector and printer
|
|
US2487671A
|
|
Photographic apparatus employing a scanning device
|
|
US2508651A
|
|
Winding device
|
|
US2508650A
|
|
Method and means of photography employing a scanning camera
|
|
US2509072A
|
|
Flow camera document copying machine
|
|
US2433530A
|
|
Paper collector for paper handling machines
|
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US2444580A
|
|
Adjustable feed shelves for paper handling machinery
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