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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
F25C1/18—Producing ice of a particular transparency or translucency, e.g. by injecting air
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FR732214D1932-02-261932-02-26Procédé et dispositif pour la fabrication de glace transparente
ExpiredFR732214A
(fr)