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发明名称
Towerless hoisting and conveying device
摘要
申请公布号
US1773964(A)
申请公布日期
1930.08.26
申请号
US19280264584
申请日期
1928.03.26
申请人
DE WOLFE MARK C
发明人
WOLFE MARK C. DE
分类号
E04G21/04
主分类号
E04G21/04
代理机构
代理人
主权项
地址
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