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经营范围
发明名称
Perfectionnement aux dispositifs pour pompes rotatives, compresseurs et analogues
摘要
申请公布号
FR729585(A)
申请公布日期
1932.07.26
申请号
FRD729585
申请日期
1931.12.18
申请人
发明人
EKELOF JOHN
分类号
F04C2/04
主分类号
F04C2/04
代理机构
代理人
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