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A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
A62C4/02—Flame traps allowing passage of gas but not of flame or explosion wave in gas-pipes
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FR1132410D1955-04-231955-04-23Soupape de sûreté et de retenue pour bouteilles à gaz liquides, ainsi que pour récipients et tuyauteries sous pression
ExpiredFR1132410A
(fr)
Dispositif de sécurité pour le remplissage de bouteilles de gaz ou de liquides sous pression à partir de bouteilles d'approvisionnement plus grandes