Ronald G. Field

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London, CA

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Patents Grantslast 30 patents

Information Patent Grant
Electrostatic discharge protection for a printed circuit board
- Patent number 5,029,041
- Issue date Jul 2, 1991
- Northern Telecom Limited
- Ronald C. Robinson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Line use indicator in a telephone set
- Patent number 4,723,279
- Issue date Feb 2, 1988
- Northern Telecom Limited
- Ronald G. Field
- H04 - ELECTRIC COMMUNICATION TECHNIQUE