4. Telecommunications
  5. Radiotelephone system
  6. Zoned or cellular telephone system

Shinya Isumi

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Computer system using identification information and control...

Telephonic communications – Plural exchange network or interconnection – Multi-pbx interconnection
Reexamination Certificate

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Method for managing communication channels in mobile telecommuni

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent

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Radio communication system

Telecommunications – Radiotelephone system – Including private cordless extension system
Reexamination Certificate

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Profile ID: LFUS-PAI-P-917005

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