4. Recording, communication, or information retrieval equipment
  5. Video or audio transmission, recording or playback equipment
  6. Telephone equipment

William T. Clark

Inventor

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Auto document reader for printer

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent

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Automatic document feeder

Printing and office machinery – Document handler – Receiver or feeder
Patent

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Automatic swimming pool cleaners and associated components

Brushing – scrubbing – and general cleaning – Submerged cleaners with ambient flow guides
Patent

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Automatic swimming pool cleaners and associated components

Fluid handling – With indicator – register – recorder – alarm or inspection means – Fluid pressure responsive indicator – recorder or alarm
Patent

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Bundled cable using varying twist schemes between sub-cables

Electricity: conductors and insulators – Conduits – cables or conductors – Insulated
Reexamination Certificate

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Profile ID: LFUS-PAI-P-282621

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