David A. Ray

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La Conner, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Transparent measuring device with enhanced viewing windows
- Patent number 9,032,634
- Issue date May 19, 2015
- Rulersmith IP, Inc.
- Elmer J. Norgard
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Transparent measuring device with enhanced viewing windows
- Patent number 8,904,661
- Issue date Dec 9, 2014
- Rulersmith IP, Inc.
- Elmer J. Norgard
- G01 - MEASURING TESTING
Information Patent Grant
Non-slip measuring tool and method of making
- Patent number 7,509,745
- Issue date Mar 31, 2009
- Rulersmith, Inc.
- Margaret D. Schafer
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES