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发明名称
Perfectionnement aux appareils élévateurs à godets, hélices, rondelles, cellules, gourmettes ou autres
摘要
申请公布号
FR695556(A)
申请公布日期
1930.12.18
申请号
FRD695556
申请日期
1930.05.14
申请人
ETABLISSEMENTS DES ELEVATEUBS D'EAU "DRAGOR ET ALMA"
发明人
分类号
F04B19/14
主分类号
F04B19/14
代理机构
代理人
主权项
地址
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