Paul Holden

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Kanata, CA

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Patents Grantslast 30 patents

Information Patent Grant
Accoustical apparatus and method for measuring water level in a gro...
- Patent number 7,178,396
- Issue date Feb 20, 2007
- Steve Carkner
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Accoustical apparatus and method for measuring water level in a gro...
- Publication number 20060037392
- Publication date Feb 23, 2006
- Steve Carkner
- G01 - MEASURING TESTING