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发明名称
Dispositif pour obtenir le vide dans un réservoir
摘要
申请公布号
FR1159522(A)
申请公布日期
1958.06.27
申请号
FRD1159522
申请日期
1956.11.05
申请人
发明人
LAGARDE JOSEPH-ELIE
分类号
B01J3/00;D06C7/00;F26B5/04
主分类号
B01J3/00
代理机构
代理人
主权项
地址
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