4. Telephonic communications
  5. Diagnostic testing, malfunction indication, or electrical...
  6. Testing of subscriber loop or terminal

John Beierle

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Multimedia distribution system using fiber optic lines

Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate

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Qualifying a telephone line for digital transmission service

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal
Patent

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Profile ID: LFUS-PAI-P-1500110

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