William Armstrong

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Salem, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Sight glasses and pipes incorporating the same
- Patent number 7,654,219
- Issue date Feb 2, 2010
- William Armstrong
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
SIGHT GLASSES AND PIPES INCORPORATING THE SAME
- Publication number 20080080080
- Publication date Apr 3, 2008
- William Armstrong
- G02 - OPTICS