Michael H. Maughan

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Perkinsville, CA

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Patents Grantslast 30 patents

Information Patent Grant
Concrete slab forming apparatus
- Patent number 9,169,643
- Issue date Oct 27, 2015
- Richard J. Dryburgh
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
Concrete slab forming apparatus
- Publication number 20140306088
- Publication date Oct 16, 2014
- Richard J. Dryburgh
- E04 - BUILDING