William Richard Harding

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Frederick, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Industrial scarifier assembly
- Patent number 7,302,946
- Issue date Dec 4, 2007
- Equipment Development Company, Inc.
- William R. Harding
- B24 - GRINDING POLISHING
Information Patent Grant
Grinder disc, insert holder and insert assembly
- Patent number 7,192,339
- Issue date Mar 20, 2007
- Equipment Development Company, Inc.
- William R. Harding
- B24 - GRINDING POLISHING
Information Patent Grant
Braking system for a wheeled abrading machine
- Patent number 6,942,069
- Issue date Sep 13, 2005
- Equipment Development Company, Inc.
- William R. Harding
- B24 - GRINDING POLISHING
Information Patent Grant
Grinder blade assembly
- Patent number D434052
- Issue date Nov 21, 2000
- Equipment Development Company, Inc.
- Leo Swan
- D15 - Machines not elsewhere specified
Information Patent Grant
Surfacing machine with "strip-sert" cutter assemblies
- Patent number 6,021,771
- Issue date Feb 8, 2000
- Equipment Development Co., Inc.
- Leo Swan
- B28 - WORKING CEMENT, CLAY, OR STONE