James G. Mullen

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Bala Cynwyd, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Portable hardness tester
- Patent number 4,361,034
- Issue date Nov 30, 1982
- King Tester Corporation
- Roland D. Borgersen
- G01 - MEASURING TESTING
Information Patent Grant
Portable hardness tester
- Patent number 4,312,220
- Issue date Jan 26, 1982
- King Tester Corporation
- Roland Borgersen
- G01 - MEASURING TESTING