Air freshener

Details Air freshener Air freshener

1992-08-21

1994-05-17

Burke, Wallace R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

D 9418

Patent

active

D03470555

REFERENCES:
patent: 4155500 (1979-05-01), Dutcher
patent: 4306892 (1981-12-01), Atalla et al.
patent: 4318892 (1982-03-01), Von Kohorn
patent: 4523870 (1985-06-01), Spector
patent: 4813344 (1989-03-01), Greif

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