4. Telephonic communications
  5. Diagnostic testing, malfunction indication, or electrical...
  6. Of trunk or long line

Foley Hoag

Law Firm

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Law Firm

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Method for resolving trouble in a connection having a...

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of trunk or long line
Reexamination Certificate

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Reduction of linear birefringence in circular-cored...

Optical waveguides – Polarization without modulation
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