Door closer

Tools and hardware – Locking or closing device

Patent

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D0807

Patent

active

D02712776

REFERENCES:
patent: D241512 (1976-09-01), Hiraishi
patent: D261099 (1981-10-01), Russell
patent: 1728693 (1929-09-01), Moore
patent: 2131564 (1938-09-01), Lasier
patent: 2994906 (1961-08-01), Check
patent: 3252178 (1966-05-01), Check et al.
patent: 3259936 (1966-07-01), Sheridan
patent: 4086681 (1978-05-01), Nakanishi
Brochure-entitled "Sleekline Door Closers", by Kwikset S & S Co., see subsidiary of Emhart Corp., Anaheim, Calif.

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