John D. Cromley Jr.

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Grand Rapids, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Variable-width torsion spring axle
- Patent number 5,326,128
- Issue date Jul 5, 1994
- CSN Manufacturing, Inc.
- John D. Cromley
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Torsion spring vehicle suspension
- Patent number 5,163,701
- Issue date Nov 17, 1992
- CSN Manufacturing, Inc.
- John D. Cromley
- B60 - VEHICLES IN GENERAL