Ross E. Hopkins

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Emporia, KS, US

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Patents Grantslast 30 patents

Information Patent Grant
Headlight aiming and light pattern testing apparatus and method
- Patent number 4,948,249
- Issue date Aug 14, 1990
- Hopkins Manufacturing Corporation
- Ross E. Hopkins
- G01 - MEASURING TESTING
Information Patent Grant
Wheeled vehicle leveling device and method
- Patent number 4,542,592
- Issue date Sep 24, 1985
- Hopkins Manufacturing Corporation
- Ross E. Hopkins
- G01 - MEASURING TESTING