John D. Ward

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Roseville, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Power tool driving systems
- Patent number 5,788,428
- Issue date Aug 4, 1998
- Diamond Tech, Incorporated
- John D. Ward
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Pavement joint reworking apparatus
- Patent number 4,778,304
- Issue date Oct 18, 1988
- Diamond Tech, Inc.
- Barney T. Baldi
- B28 - WORKING CEMENT, CLAY, OR STONE