Robert W. Gresham

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Alpena, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Cementitious product making system with product height gauging mech...
- Patent number 4,095,925
- Issue date Jun 20, 1978
- Besser Company
- Harry F. Cruzen
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Cementitious product making system with product height gauging mech...
- Patent number 4,036,570
- Issue date Jul 19, 1977
- Besser Company
- Harry F. Cruzen
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Cementitious product making system with product height gauging mech...
- Patent number 3,963,397
- Issue date Jun 15, 1976
- Besser Company
- Harry F. Cruzen
- B28 - WORKING CEMENT, CLAY, OR STONE