4. Telephonic communications
  5. Telephone line or system combined with diverse electrical...
  6. Having transmission of a digital message signal over a...

Hisao Koga

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Communication apparatus

Telecommunications – Receiver or analog modulated signal frequency converter
Reexamination Certificate

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Communication apparatus

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
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Communication apparatus

Telecommunications – Receiver or analog modulated signal frequency converter
Reexamination Certificate

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Communication apparatus and coexistence method for enabling...

Multiplex communications – Communication over free space – Combining or distributing information via time channels
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Communication apparatus and communication method

Pulse or digital communications – Systems using alternating or pulsating current
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Profile ID: LFUS-PAI-P-2238075

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