Walter Strever

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Cromwell, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for making concrete pipe
- Patent number 4,042,315
- Issue date Aug 16, 1977
- Atlantic Pipe Corporation
- Norman Ottmann
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method and apparatus for making concrete pipe
- Patent number 4,041,118
- Issue date Aug 9, 1977
- Atlantic Pipe Corporation
- Norman Ottmann
- B28 - WORKING CEMENT, CLAY, OR STONE