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发明名称
Elevator tower assembled from prefabricated panels
摘要
申请公布号
US2644545(A)
申请公布日期
1953.07.07
申请号
US19500194792
申请日期
1950.11.09
申请人
UNIVERSAL MANUFACTURING CORP.
发明人
NORTH THOMAS C.
分类号
B66B9/187;E04G1/14;E21D7/02
主分类号
B66B9/187
代理机构
代理人
主权项
地址
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