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F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
FR690584D1929-05-011929-05-01
Improvements to refrigeration devices
ExpiredFR690584A
(en)