4. Locks
  5. Operating mechanism
  6. Using a powered device

John D. Platt

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Access identification apparatus

Locks – Operating mechanism – Using a powered device
Patent

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Magnetic tape transport for positive coupling of cassette tape r

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Tape record
Patent

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Positioning fixture for integrated circuit chip testing board

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent

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Profile ID: LFUS-PAI-P-778832

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