4. Pulse or digital communications
  5. Repeaters
  6. Testing

Rikio Maruta

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2M-point discrete Fourier transform calculator comprising a pre-

Boots – shoes – and leggings
Patent

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Asynchronous PCM common decoding apparatus

Telegraphy – Systems – Printing
Patent

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Cross-connection network using time switch

Multiplex communications – Wide area network – Packet switching
Patent

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Cross-connection network using time switch

Multiplex communications – Wide area network – Packet switching
Patent

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Digital compandor having nonlinear companding characteristics

Communications: electrical – Audible indication – Percussion-type sound producer
Patent

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Profile ID: LFUS-PAI-P-191885

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