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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
F25C—PRODUCING, WORKING OR HANDLING ICE
F25C1/00—Producing ice
F25C1/02—Producing natural ice, i.e. without refrigeration
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FR970479D1948-08-101948-08-10Procédé et dispositif pour la production de glace naturelle
ExpiredFR970479A
(fr)