Door closer

Details Door closer Door closer

1982-09-30

1984-06-12

Burke, Wallace R.

Tools and hardware

Locking or closing device

Patent

active

D02742128

REFERENCES:
patent: D94773 (1935-03-01), Parsons
patent: D167177 (1952-07-01), Schlage
patent: D241512 (1976-09-01), Hiraishi
patent: 2820241 (1958-01-01), Schlage
patent: 3252178 (1966-05-01), Check et al.
patent: 3426382 (1969-02-01), Lazier et al.
patent: 3902220 (1975-09-01), Little
patent: 4086681 (1978-05-01), Nakanishi
patent: 4115897 (1978-09-01), Zunkel
Architectoril Record, Apr. 1951, p. 223; Russwin "400" Door Closer made by American Hardware Corp.
1978 Sweet's Catalog file, vol. 7, section 8:30 Closers; Norton Series 1600, 8000, 8:30/Ean; of Yab/Eat, pp. 18-20, LCN, 8:30/Lc; Parker 8:30/PA.

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