4. Winding, tensioning, or guiding
  5. Unwinding and rewinding a machine convertible information...
  6. Including threading

John M. Coval

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Pinch quill, apparatus, and film winding method

Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate

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Pinch spools one-time use cameras apparatus and methods

Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – Including threading
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2546630

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