John J. Steffen

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Lindenhurst, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for replacing a damaged railroad freight car brake beam
- Patent number 7,430,794
- Issue date Oct 7, 2008
- Powerbrace Corporation
- John J. Steffen
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
Method for replacing a damaged railroad freight car brake beam
- Publication number 20060108187
- Publication date May 25, 2006
- John J. Steffen
- B61 - RAILWAYS