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US4107582A
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Character selector for a shaped beam cathode ray tube
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US4032815A
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Collimated beam electron gun system for shaped beam cathode ray tube
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US3749491A
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Microfiche duplicator
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US3700318A
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Film gate
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US3721494A
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Slide changer
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US3676317A
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Sputter etching process
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US3673932A
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Image combining optical system
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US3673933A
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Optical system for superimposing images
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US3674354A
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Microfilm viewer-printer
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US3645188A
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Projecting apparatus and display system using same
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US3667839A
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Microfiche viewer
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US3667830A
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Display system utilizing a selectively deformable light-reflecting element
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US3630516A
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Sheet-feeding apparatus
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US3622297A
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Method of fusion sealing wire gird in tube
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US3626459A
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Graphic arts printer
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US3600624A
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Distortion reduction of character aperture mask in shaped beam tubes
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US3674591A
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Surface deformation imaging process
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US3633065A
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Shaped beam tube
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US3600628A
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Cathode ray tube projection display system
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US3586145A
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Electromagnetic clutch having stacked armature disks
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