Register fan

Details Register fan Register fan

1982-06-17

1985-04-09

Kemper, Catherine E.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D23114, D23115

Patent

active

D02783622

REFERENCES:
patent: D104763 (1937-06-01), Black
patent: D145702 (1946-10-01), Sanders
patent: D256047 (1980-07-01), Wormington

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