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

Menno Aartsen

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Enhanced telephone communication methods and apparatus...

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate

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Methods and apparatus for automating the servicing of...

Telephonic communications – Centralized switching system – Call distribution to operator
Reexamination Certificate

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Methods and apparatus for automating the telephone operator...

Telephonic communications – Centralized switching system – Call distribution to operator
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2130584

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