4. Facsimile and static presentation processing
  5. Facsimile
  6. Recording apparatus

Daniel W. Gravereaux

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Acoustical prompt recording system and method

Education and demonstration – Audio recording and visual means
Patent

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Adaptive expanders for FM stereophonic broadcasting system utili

Electrical audio signal processing systems and devices – Binaural and stereophonic – Broadcast or multiplex stereo
Patent

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Apparatus and method for decoding four channel sound

Patent

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Apparatus for cutting audio disks

Patent

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Method and system for synchronization of an auxiliary sound sour

Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent

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Profile ID: LFUS-PAI-P-454499

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