4. Photography
  5. With data recording
  6. Optical

William B. Salvas

Inventor

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Camera and mechanical timer mechanism

Photography – Camera release control circuit – Self-timer
Patent

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Camera back

Photography – Camera detail – Film restraining means or pressure plate
Patent

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Camera back

Photography – With data recording – Optical
Patent

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Camera having self timer dwell

Photography – Camera release control circuit
Patent

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Camera having self timer unwind without exposure

Photography – Camera detail – Lens cover
Patent

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Profile ID: LFUS-PAI-P-399834

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