William B. Jeffrey

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North Huntingdon, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Control system for automatic railway car coupler
- Patent number 4,049,128
- Issue date Sep 20, 1977
- Westinghouse Air Brake Company
- William B. Jeffrey
- B61 - RAILWAYS
Information Patent Grant
Visual coupling indicator for automatic railway car couplers
- Patent number 4,004,697
- Issue date Jan 25, 1977
- Westinghouse Air Brake Company
- William B. Jeffrey
- B61 - RAILWAYS
Information Patent Grant
Combination fluid pressure and electric trip cock emergency brake a...
- Patent number 3,992,062
- Issue date Nov 16, 1976
- Westinghouse Air Brake Company
- William B. Jeffrey
- B60 - VEHICLES IN GENERAL