Douglas G. Johnson

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Blooming Prairie, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Pick resistant window lock manual control
- Patent number 5,778,602
- Issue date Jul 14, 1998
- Truth Hardware Corporation
- Douglas G. Johnson
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Window lock handle and escutcheon
- Patent number D390445
- Issue date Feb 10, 1998
- Truth Hardware Corporation
- Douglas G. Johnson
- D08 - Tools and hardware
Information Patent Grant
Window lock handle and escutcheon
- Patent number D389396
- Issue date Jan 20, 1998
- Truth Hardware Corporation
- Douglas G. Johnson
- D08 - Tools and hardware