John P. Deming

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San Jose, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Drain closure apparatus
- Patent number 5,728,294
- Issue date Mar 17, 1998
- John P. Deming
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Drain closure apparatus
- Patent number 5,582,720
- Issue date Dec 10, 1996
- John P. Deming
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING