Air impeller

Details Air impeller Air impeller

1976-02-09

1978-01-03

Burke, Wallace R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2304

Patent

active

D02468565

REFERENCES:
patent: D157474 (1950-02-01), Faber
patent: 1088883 (1974-03-01), Donath
patent: 3367423 (1968-02-01), Van Ranst

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