Ceiling air diffuser or the like

Details Ceiling air diffuser or the like Ceiling air diffuser or the like

1982-02-22

1984-10-16

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D23151

Patent

active

D02759888

REFERENCES:
patent: D166322 (1952-04-01), Kurth
patent: D171505 (1954-02-01), Krueger
patent: D179847 (1957-03-01), Griner
patent: D225010 (1972-10-01), Steiner
patent: D225011 (1972-10-01), Steiner
patent: 2511490 (1950-06-01), Bauer
patent: 3877356 (1975-04-01), Burns
patent: 3906846 (1975-09-01), Day
patent: 3937133 (1976-02-01), Bertin et al.
patent: 4020752 (1977-05-01), Stephan
patent: 4080882 (1978-03-01), Burns

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