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发明名称
Perfectionnements aux compresseurs et pompes à membranes
摘要
申请公布号
FR978115(A)
申请公布日期
1951.04.10
申请号
FRD978115
申请日期
1948.11.17
申请人
发明人
DUMESNY JEAN;DUMESNY JACQUES
分类号
F04B45/04
主分类号
F04B45/04
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代理人
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