4. Winding, tensioning, or guiding
  5. Coil holder or support
  6. Spool or core

Christopher T. Mattson

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Camera apparatus for magnetically recording on film

Dynamic magnetic information storage or retrieval – Recording on or reproducing from an element of diverse utility
Patent

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Film cassette

Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent

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Film cassette

Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent

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Latched film unit, latching device, system, and method

Photography – Exposure data from film container – Electrical component on or in film container
Reexamination Certificate

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Method and apparatus for magnetic communication via a...

Photography – With data recording – Data for control of subsequent processing of film
Reexamination Certificate

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Profile ID: LFUS-PAI-P-61557

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