4. Multiplex communications
  5. Communication over free space
  6. Having a plurality of contiguous regions served by...

Arthur W. Astrin

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Hands-free personal communication device and pocket sized phone

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

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Keyed antenna adapter

Communications: radio wave antennas – Antennas – With coupling network or impedance in the leadin
Reexamination Certificate

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Low power full duplex wireless link

Electrical audio signal processing systems and devices – Hearing aids – electrical – Remote control – wireless – or alarm
Reexamination Certificate

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Recessed aperture-coupled patch antenna with multiple...

Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate

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Recessed aperture-coupled patch antenna with multiple...

Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1741852

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