Richard R. Bettger

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San Francisco, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Lever spindle spring cage
- Patent number 4,884,835
- Issue date Dec 5, 1989
- Schlage Lock Company
- Jon M. Smallegan
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Construction keying
- Patent number 4,875,352
- Issue date Oct 24, 1989
- Schlage Lock Company
- Jon M. Smallegan
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Retrofit lever assembly for a door knob
- Patent number 4,648,643
- Issue date Mar 10, 1987
- Schlage Lock Company
- Richard R. Bettger
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES