Raymond L. Sterling

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Minneapolis, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Interlocked plastic-encased concrete pipe
- Patent number 5,573,040
- Issue date Nov 12, 1996
- Pipeform LLC
- Mark W. Schumacher
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Tire inflation device
- Patent number 4,126,161
- Issue date Nov 21, 1978
- Raymond L. Sterling
- B60 - VEHICLES IN GENERAL