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发明名称
Dispositif pour la mise à l'étage de cages d'extraction a plusieurs étages dans l'extraction à commande électrique
摘要
申请公布号
FR889747(A)
申请公布日期
1944.01.18
申请号
FRD889747
申请日期
1943.01.09
申请人
BROWN, BOVERI & COMPAGNIE
发明人
分类号
B66B1/14;B66B1/24
主分类号
B66B1/14
代理机构
代理人
主权项
地址
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