Electronic card-operated door lock

Details Electronic card-operated door lock Electronic card-operated door lock

1986-09-03

1989-02-21

Burke, Wallace R.

Tools and hardware

Locking or closing device

Lock, latch or bolt

Patent

active

D02999056

REFERENCES:
patent: D230601 (1974-03-01), Cross et al.
patent: D246711 (1977-12-01), Kneale
patent: D248233 (1978-06-01), Dibenedetto
patent: D268029 (1983-02-01), Fisher
patent: D280381 (1985-09-01), Schultz
patent: D290442 (1987-06-01), Floyd et al.
Continental Instruments Corp. brochure, "Card Access 50", p. 1.

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