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发明名称
Perfectionnements apportés aux machines motrices, pompes, compteurs, ventilateurs, exhausteurs et autres appareils rotatifs
摘要
申请公布号
FR687813(A)
申请公布日期
1930.08.13
申请号
FRD687813
申请日期
1930.01.07
申请人
发明人
FEUERHEERD ERNEST;MALCOLM JAMES ARATOON
分类号
F04D15/00
主分类号
F04D15/00
代理机构
代理人
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地址
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