George E. Ludwick

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Tequesta, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Point detection and indication with latch out means
- Patent number 5,669,587
- Issue date Sep 23, 1997
- General Railway Signal Corporation
- Daniel W. Van Alstine
- B61 - RAILWAYS
Information Patent Grant
Low profile switch machine with hand throw or motor throw selector...
- Patent number 5,494,242
- Issue date Feb 27, 1996
- General Railway Signal Corporation
- George E. Ludwick
- B61 - RAILWAYS