4. Measuring and testing
  5. With fluid pressure
  6. Leakage

John H. Watkins

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Communications network for a metropolitan area

Optical communications – Multiplex – Optical switching
Reexamination Certificate

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Electronic circuitry

Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent

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Method of determining the location of underwater pipeline leaks

Measuring and testing – With fluid pressure – Leakage
Patent

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Metropolitan photonic switch

Optical waveguides – With optical coupler – Switch
Reexamination Certificate

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Metropolitan photonic switch

Optical waveguides – With optical coupler – Switch
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1928748

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