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Publication of FR724731ApublicationCriticalpatent/FR724731A/fr
B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space
B64D13/02—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being pressurised
B64D13/04—Automatic control of pressure
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FR724731D1930-10-281931-10-17Dispositif de sûreté pour avions pour grandes altitudes avec cabines à l'épreuvedes pressions
ExpiredFR724731A
(fr)