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US2673500A
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Film cassette
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Slide projector with rotatable slide mount
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Automatic phonograph
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Binocular mount
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Mount for binoculars
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Water- and weatherproofing construction of casings for binoculars
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Binocular
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Mounting for and including optical refracting means and method of forming the same
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Cementing composition for optical assemblies
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Method of forming optical prisms
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Photographic apparatus
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Camera
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Reflex camera
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Slide projection apparatus
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Photographic camera
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Camera
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Shutter mechanism for cameras
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Camera
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Camera
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Photographic camera
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