Magnetic card reader and door knob assembly

Details Magnetic card reader and door knob assembly Magnetic card reader and door knob assembly

1995-08-25

1997-08-26

Vinson, Brian N.

Tools and hardware

Locking or closing device

0807

Patent

active

D03827909

REFERENCES:
patent: D288899 (1987-03-01), Floyd et al.
patent: D305861 (1990-02-01), Kautt
patent: D313159 (1990-12-01), Kautt
patent: D360124 (1995-07-01), Gartner
patent: D366822 (1996-02-01), Brooks et al.
patent: 4227388 (1980-10-01), Nigrelli et al.
patent: 4232353 (1980-11-01), Musciatti et al.

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