James E. Petrie

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Lindsay, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Water relief valve for a drainage system
- Patent number 5,701,931
- Issue date Dec 30, 1997
- Trevor J. Phillips
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Water relief valve for a drainage system
- Patent number D363769
- Issue date Oct 31, 1995
- Trevor J. Phillips
- D23 - Environmental heating and cooling