GHA Lock Joint, Inc.

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Wharton, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Concrete pipe machine
- Patent number 4,600,373
- Issue date Jul 15, 1986
- GHA Lock Joint, Inc.
- Harold V. Swanson
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Concrete comprising sulfur, cyclopentadiene oligomers, aggregate an...
- Patent number 4,414,385
- Issue date Nov 8, 1983
- GHA Lock Joint, Inc.
- Harold V. Swanson
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES