Bruce G. Beigel

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Seven Valleys, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic emergency exit door lock with time delay
- Patent number 4,720,128
- Issue date Jan 19, 1988
- Reliable Security Systems, Inc.
- Emanuel L. Logan
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Magnetic door lock with time delay option
- Patent number 4,703,962
- Issue date Nov 3, 1987
- Reliable Security Systems, Inc.
- Michael A. Kelly
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Magnetic emergency exit door lock with time delay
- Patent number 4,652,028
- Issue date Mar 24, 1987
- Reliable Security Systems, Inc.
- Emanuel L. Logan
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES