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Publication of FR766756ApublicationCriticalpatent/FR766756A/fr
F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
F24F7/00—Ventilation
F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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FR766756D1934-01-081934-01-08Dispositif pour la ventilation d'un local
ExpiredFR766756A
(fr)