Margaret Schafer

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Burlington, WA, US

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Patents Grantslast 30 patents

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

Patents Applicationslast 30 patents

Information Patent Application
Non-slip measuring tool and method of making
- Publication number 20070175052
- Publication date Aug 2, 2007
- Rulersmith, Inc.
- Randal D. Schafer
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
Transparent measuring device with enhanced visibility lines
- Publication number 20050178013
- Publication date Aug 18, 2005
- Randal D. Schafer
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
Transparent measuring device with enhanced visibility lines
- Publication number 20040088870
- Publication date May 13, 2004
- Randal D. Schafer
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES