David W. Daugherty, Jr.

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Crown Point, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Spherical ball/race in coupler butt
- Patent number 7,533,780
- Issue date May 19, 2009
- Wabtec Holding Corp.
- David W. Daugherty, Jr.
- B61 - RAILWAYS
Information Patent Grant
Taper lugs on draft gear plates
- Patent number 7,383,961
- Issue date Jun 10, 2008
- Wabtec Holding Corp.
- David W. Daugherty, Jr.
- B61 - RAILWAYS