Pocket fan

Details Pocket fan Pocket fan

1992-12-04

1993-10-26

Burke, Wallace R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

D19 43, D19 51, D19 48, 416 63, 416146R, D23381

Patent

active

D03407675

REFERENCES:
patent: D104939 (1937-06-01), Hauton
patent: D139903 (1945-01-01), Baff
patent: D256136 (1980-07-01), Muller
patent: D309182 (1990-07-01), Hsu
patent: D325628 (1992-04-01), Cho
patent: 2100994 (1937-11-01), Cohen
patent: 2245015 (1941-06-01), Sibal
patent: 2595496 (1952-05-01), Popovich
patent: 3010645 (1961-11-01), Mandelstam

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