Jack B. Kerr

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Deerfield, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for forming an improved insulated metal frame
- Patent number 4,118,266
- Issue date Oct 3, 1978
- Jack B. Kerr
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS