James D. Hamilton

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Lexington, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Deadbolt combination lock system with automatic locking spring bolt
- Patent number 6,151,935
- Issue date Nov 28, 2000
- Mas-Hamilton Group
- Walter R. Evans
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Keypad entry electronic combination lock with self-generated combin...
- Patent number 5,873,276
- Issue date Feb 23, 1999
- Mas-Hamilton Group
- Gerald Lee Dawson
- G07 - CHECKING-DEVICES
Information Patent Grant
Electronic combination lock housing
- Patent number D388309
- Issue date Dec 30, 1997
- Mas-Hamilton Group
- James D. Hamilton
- D08 - Tools and hardware