Roy G. Mason

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Sunnyvale, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Precision measuring gauge having sonic delay line with free-standin...
- Patent number 4,803,427
- Issue date Feb 7, 1989
- Amcon, Inc.
- Roy G. Mason
- G01 - MEASURING TESTING
Information Patent Grant
Telephone handset acoustic coupling cup
- Patent number 4,246,444
- Issue date Jan 20, 1981
- Anderson Jacobson, Inc.
- Roy G. Mason
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone handset acoustic coupling cup
- Patent number 4,158,106
- Issue date Jun 12, 1979
- Anderson Jacobson, Inc.
- Roy G. Mason
- H04 - ELECTRIC COMMUNICATION TECHNIQUE