John R. Murray Jr.

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Findlay, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Hopper door operating mechanism
- Patent number 5,606,916
- Issue date Mar 4, 1997
- Difco, Inc.
- John R. Murray
- B61 - RAILWAYS
Information Patent Grant
Railroad ballast spreading (plow) system
- Patent number 5,579,593
- Issue date Dec 3, 1996
- Difco, Inc.
- John R. Murray
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Hopper door apparatus for a railway car
- Patent number 5,144,895
- Issue date Sep 8, 1992
- Differential Steel Car Company
- John R. Murray
- B61 - RAILWAYS
Information Patent Grant
Drop end, open top rail car
- Patent number 4,964,348
- Issue date Oct 23, 1990
- Differential Steel Car Company
- Richard W. Flowers
- B61 - RAILWAYS