4. Telecommunications
  5. Radiotelephone system
  6. Special service

Yuanchen Ma

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Method and apparatus for performing handoff in mobile...

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

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Method of implementing multi-party conference service by...

Telecommunications – Radiotelephone system – Special service
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3227066

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