IP Library › Granted Patent US 5,129,145
Granted Patent Utility
US 5,129,145 · App. 07/736,979

Valve reconditioning process

Inventors: Alvin J. Matthews, Wade A. Kunis
Patented Case View Patent ↗
Granted: Jul 14, 1992 Filed: Jul 29, 1991
Inventors
Alvin J. Matthews
Wade A. Kunis
Assignee (at issue)
Westinghouse Air Brake Co.

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Quick Facts
Patent No.
US 5,129,145
App. No.
07/736,979
Filed
1991-07-29
Granted
1992-07-14
Kind
A