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发明名称
Perfectionnements apportés aux soupapes d'étranglement notamment pour appareils à vide élevé
摘要
申请公布号
FR873954(A)
申请公布日期
1942.07.24
申请号
FRD873954
申请日期
1941.06.26
申请人
GEWERKSCHAFT MATHIAS STINNES
发明人
分类号
F16K1/52
主分类号
F16K1/52
代理机构
代理人
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地址
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