Portable swinging door lock

Details Portable swinging door lock Portable swinging door lock

1990-09-26

1992-09-29

Vinson, Brian N.

Tools and hardware

Locking or closing device

Lock, latch or bolt

Patent

active

D03297993

REFERENCES:
patent: 1848085 (1932-03-01), Eisenschmidt
patent: 2485189 (1949-10-01), Churchill
patent: 2532586 (1950-12-01), Wickwire
patent: 2536941 (1951-01-01), Jones
patent: 2918318 (1959-12-01), Sacharski
patent: 3437365 (1969-04-01), Zadanoff et al.
patent: 3620483 (1971-11-01), Weinberger
patent: 3623268 (1971-11-01), Zepf
patent: 3785685 (1974-01-01), MacDonald et al.
patent: 3997204 (1976-12-01), Krempp
patent: 3997205 (1976-12-01), MacDonald
patent: 4019764 (1977-04-01), Okamura
patent: 4228842 (1980-10-01), Clark

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