Michael K. Hoffman

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Cannon Falls, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Shipping cover hinged nailing fin for use with a frame assembly
- Patent number 5,590,496
- Issue date Jan 7, 1997
- Amesbury Group, Inc.
- Jeffrey S. Martin
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Friction brake for a vertical sliding window
- Patent number 4,551,881
- Issue date Nov 12, 1985
- Plastic Profiles, Inc.
- Michael K. Hoffman
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES