发明授权
US3994006A Film forwarding mechanism 失效
电影转发机制

Film forwarding mechanism
摘要:
Film forwarding mechanism comprising a reciprocally slidable plate carrying pawl to engage and forward film. The plate is normally held at a first position, is released subsequent to camera shutter action, moved to and held at an intermediate position until released therefrom by action of a rotary drive mechanism, moved to a second position, then moved by the drive mechanism from the second position to the first position, the pawl forwarding film during plate movement from the second to the first position.
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