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

Roger M. Needham

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Carrier locating system

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent

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High-speed mesh connected local area network

Multiplex communications – Wide area network – Packet switching
Patent

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Locating and authentication system

Communications: electrical – Continuously variable indicating – With meter reading
Patent

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Radio-frequency badge for location measurement

Communications: directive radio wave systems and devices (e.g. – Directive – Position indicating
Reexamination Certificate

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Profile ID: LFUS-PAI-P-993470

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