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发明名称
Perfectionnements aux pompes à vide
摘要
申请公布号
FR865672(A)
申请公布日期
1941.05.30
申请号
FRD865672
申请日期
1940.05.17
申请人
COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON-HOUSTON
发明人
分类号
F04C29/02
主分类号
F04C29/02
代理机构
代理人
主权项
地址
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