John Crawford

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Walkerville, AU

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Patents Grantslast 30 patents

Information Patent Grant
Heater for electric blanket
- Patent number 6,689,989
- Issue date Feb 10, 2004
- Harold W. Irwin
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Circuit arrangement for controlling the temperature of a heating el...
- Patent number 5,847,367
- Issue date Dec 8, 1998
- U.S. Philips Corporation
- Philip T. Hancock
- G05 - CONTROLLING REGULATING
Information Patent Grant
System for triac trigger control in combination with a sensing element
- Patent number 5,323,062
- Issue date Jun 21, 1994
- U.S. Philips Corporation
- John S. Crawford
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
Heater for electric blanket
- Publication number 20030173345
- Publication date Sep 18, 2003
- Harold W. Irwin
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR