David H. Edwards

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Ann Arbor, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Pneumatic indicator for detecting liquid level
- Patent number 8,756,991
- Issue date Jun 24, 2014
- Graco Minnesota Inc.
- David H. Edwards
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
PNEUMATIC INDICATOR FOR DETECTING LIQUID LEVEL
- Publication number 20120096938
- Publication date Apr 26, 2012
- QED Environmental Systems, Inc.
- David H. Edwards
- G01 - MEASURING TESTING