Patrick D. Hoyle

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Sedro Woolley, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Telephone-controlled electrical switch
- Patent number 5,872,832
- Issue date Feb 16, 1999
- Richard A. Bishel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Emergency signaling device
- Patent number 5,270,698
- Issue date Dec 14, 1993
- Patrick D. Hoyle
- G08 - SIGNALLING