Andrew J. Malpass

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East Jordan, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Dual lifting manhole cover
- Patent number 7,905,679
- Issue date Mar 15, 2011
- East Jordan Iron Works, Inc.
- Kevin S. Vrondran
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
DUAL LIFTING MANHOLE COVER
- Publication number 20090123227
- Publication date May 14, 2009
- EAST JORDAN IRON WORKS, INC.
- Kevin S. Vrondran
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING