Portable fan unit

Details Portable fan unit Portable fan unit

1992-07-14

1994-03-29

Burke, Wallace R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Patent

active

D03455998

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patent: 4687414 (1987-08-01), Wardy
patent: 4957231 (1990-09-01), Kalisher
patent: 5131810 (1992-07-01), Wang
patent: 5146765 (1992-09-01), Waters

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