Donald P. Crosby

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Lady Lake, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for automatically testing a railroad interlocking
- Patent number 7,711,511
- Issue date May 4, 2010
- Ultra-Tech Enterprises, Inc.
- Joseph C. Winkler
- B61 - RAILWAYS
Information Patent Grant
Method and apparatus for automatically testing a railroad interlocking
- Patent number 7,363,187
- Issue date Apr 22, 2008
- Ultra-Tech Enterprises, Inc.
- Joseph C. Winkler
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for automatically testing a railroad interlocking
- Publication number 20080288202
- Publication date Nov 20, 2008
- Ultra-Tech Enterprises, Inc.
- Joseph C. Winkler
- B61 - RAILWAYS
Information Patent Application
Method and apparatus for automatically testing a railroad interlocking
- Publication number 20060009940
- Publication date Jan 12, 2006
- Joseph C. Winkler
- B61 - RAILWAYS