4. Telephonic communications
  5. Having light wave or ultrasonic link for speech or paging...
  6. Including fiber optic link within telephone network

Christopher Field

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Compact single lens laser system for object/vehicle presence...

Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate

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Mobile communication having mobile subscribers, PCN network, PBX

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent

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System and method for traffic monitoring, speed...

Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1676488

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