Richard C. Grace

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Carlisle, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Narrow accessway liquid sewage pump remotely operable multi-part qu...
- Patent number 5,038,817
- Issue date Aug 13, 1991
- Environment/One Corporation
- Clark A. Henry
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Narrow accessway sewage collection tank assembly, remote operated q...
- Patent number 4,822,213
- Issue date Apr 18, 1989
- Environment/One Corporation
- Richard C. Grace
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Combined manway and collection tank for sewage grinder
- Patent number 4,014,475
- Issue date Mar 29, 1977
- Environment/One Corporation
- Richard C. Grace
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...