Air vent cover

Details Air vent cover Air vent cover

1978-12-18

1981-06-09

Gandy, James M.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2304

Patent

active

D02595087

REFERENCES:
patent: 1146215 (1915-07-01), Treman
patent: 1389788 (1921-09-01), Steger
patent: 1483290 (1924-02-01), Eggimann
patent: 1518319 (1924-12-01), Freeman et al.
patent: 2172939 (1939-09-01), Lintern et al.
patent: 2458324 (1949-01-01), Volkmann et al.
patent: 2987980 (1961-06-01), Winn
patent: 3401620 (1968-09-01), Armstrong et al.
patent: 4038911 (1977-08-01), Hart
J. C. Whitney Catalog No. 362B, .COPYRGT.1977, p. 27, Space Dome Windows for Vans & RVs & Large Sun Roof, top left side of page.

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