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US3832729A
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Image dividing mechanism in photographic cameras for unperforated rollfilm
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Mechanical differential for an exposure meter at photographic cameras
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Apparatus for controlled selective separation of undesirable constituents from blood to achieve a therapeutic effect
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Light measuring apparatus for a single-lens reflex camera
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Preset diaphragm for interchangeable lenses of single-lens mirror reflex cameras
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Focal plane shutter gap setting mechanism
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Shutter release mechanism of photographic cameras, preferably provided with roller-blind shutter
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IE34640L
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Improvements in instrument for taking a sample from an internal organ
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