Damper for a ventilation turbine

Details Damper for a ventilation turbine Damper for a ventilation turbine

1991-08-05

1994-05-31

Word, A. Hugo

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Patent

active

D03474712

REFERENCES:
patent: D119194 (1940-02-01), Dressler
patent: D189559 (1961-01-01), Breidert
patent: D210017 (1968-01-01), Morrison et al.
patent: D216795 (1970-03-01), Field
patent: D277026 (1985-01-01), Waltz et al.
patent: D277028 (1985-01-01), Waltz et al.
patent: 4248613 (1981-02-01), Linhart
patent: 4506655 (1985-03-01), Kuechler
patent: 5064089 (1991-11-01), Schultz
patent: 5196040 (1993-03-01), Malloy et al.

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