Patents
Sitemap › F25 - Refrigeration or cooling; Combined heating and refrigeration systems; Heat pump systems; Manufacture or storage of ice; Liquefaction or solidification of gases › F25D - Refrigerators; Cold rooms; Ice-boxes; Cooling or freezing apparatus not covered by any other subclass › F25D 7 - Devices using evaporation effects without recovery of the vapour
Patents for F25D 7 - Devices using evaporation effects without recovery of the vapour (403)
05/1977
05/31/1977US4026971 Evaporative cooler
10/1976
10/12/1976US3984995 Method and apparatus for the treatment of air
06/1976
06/29/1976US3965691 Cooling system for poultry houses
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