John A. Coburn Jr.

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Warren, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Sealing member
- Patent number 4,813,690
- Issue date Mar 21, 1989
- L&L Products, Inc.
- John A. Coburn
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Closure plate for an opening
- Patent number 4,463,870
- Issue date Aug 7, 1984
- L&L Products, Inc.
- John A. Coburn
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...