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发明名称
Vanne d'extraction à passage direct, à commande à distance et à fermeture automatique
摘要
申请公布号
FR714600(A)
申请公布日期
1931.11.17
申请号
FRD714600
申请日期
1931.04.02
申请人
发明人
BEZ CASIMIR
分类号
F16K31/122
主分类号
F16K31/122
代理机构
代理人
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