Ventilator grille

Details Ventilator grille Ventilator grille

1988-10-28

1990-07-17

Gandy, James M.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Patent

active

D03093484

REFERENCES:
patent: D201933 (1965-08-01), Ruggles
patent: 2037176 (1936-04-01), Phail
patent: 2995079 (1961-08-01), La Fontaine
patent: 4274330 (1981-06-01), Witten et al.
patent: 4821628 (1989-04-01), Sarazen, Jr. et al.

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