Richard L. Tousignant

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St. Paul, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Concrete and mortar distribution process and apparatus
- Patent number 4,997,284
- Issue date Mar 5, 1991
- E-Con-Mega Mix
- Robert C. Tousignant
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Concrete and mortar distribution process and apparatus
- Patent number 4,953,752
- Issue date Sep 4, 1990
- E-Con-Mega Mix
- Robert C. Tousignant
- B28 - WORKING CEMENT, CLAY, OR STONE