Andrew C. Mitchell

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Rockford, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for raising manhole castings
- Patent number 9,127,430
- Issue date Sep 8, 2015
- Andrew C. Mitchell
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR RAISING MANHOLE CASTINGS
- Publication number 20100178106
- Publication date Jul 15, 2010
- Andrew C. Mitchell
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING