Combination lock

Details Combination lock Combination lock

1984-10-05

1987-05-12

Burke, Wallace R.

Tools and hardware

Locking or closing device

D 8343

Patent

active

D02897300

REFERENCES:
patent: 2772555 (1956-12-01), Smith
patent: 3966033 (1976-06-01), Doo
patent: 4020662 (1977-05-01), Fowler
patent: 4167222 (1979-09-01), El Bindari
patent: 4598562 (1986-07-01), Freeman
"Keyless Pushbutton Combination Door Lock", Lock No. 101, p. 3, Preso brochure, Mar. 1967.

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