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发明名称
Dispositif de commande des trappes de trémie
摘要
申请公布号
FR1028271(A)
申请公布日期
1953.05.20
申请号
FRD1028271
申请日期
1950.11.22
申请人
ETABLISSEMENTS ARBEL
发明人
分类号
B61D7/26
主分类号
B61D7/26
代理机构
代理人
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