4. Multiplex communications
  5. Wide area network
  6. Packet switching

David B. Bartholomew

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Apparatus and method for compensating for clock drift in...

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Regenerating or restoring rectangular or pulse waveform
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Apparatus for reducing noise

Wave transmission lines and networks – Coupling networks – Nonreciprocal gyromagnetic type
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Digital wireless phone/modem jack capable of communications...

Pulse or digital communications – Systems using alternating or pulsating current – Angle modulation
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Downhole transmission system comprising a coaxial capacitor

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
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Method and apparatus of assessing down-hole drilling conditions

Boring or penetrating the earth – With signaling – indicating – testing or measuring
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Profile ID: LFUS-PAI-P-1003664

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