4. Telecommunications
  5. Radiotelephone system
  6. Emergency or alarm communication

Jim Jingfu Chao

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Method and apparatus for precisely locating a mobile unit

Telecommunications – Radiotelephone system – Emergency or alarm communication
Reexamination Certificate

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Method and apparatus for reducing interference in a wireless...

Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2154740

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