P. David Tan

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Emporia, KS, US

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Patents Grantslast 30 patents

Information Patent Grant
Reflecting lighted level
- Patent number 6,851,200
- Issue date Feb 8, 2005
- Hopkins Manufacturing Corporation
- P. David Tan
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
REFLECTING LIGHTED LEVEL
- Publication number 20040177524
- Publication date Sep 16, 2004
- Hopkins Manufacturing Corporation
- P. David Tan
- G01 - MEASURING TESTING