Mark J. Hunke

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Pella, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Insulated window assembly with internal muntin bars
- Patent number 4,989,384
- Issue date Feb 5, 1991
- Rolscreen Company
- James J. Kinghorn
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS