Richard Trefz

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Downingtown, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Display priority for 2D CAD documents
- Patent number 7,280,123
- Issue date Oct 9, 2007
- Bentley Systems, Inc.
- Keith A. Bentley
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Display priority for 2D CAD documents
- Publication number 20050151755
- Publication date Jul 14, 2005
- Bentley Systems, Incorporated
- Keith A. Bentley
- G06 - COMPUTING CALCULATING COUNTING