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发明名称
Headframe for scaffolding
摘要
申请公布号
US2294993(A)
申请公布日期
1942.09.08
申请号
US19400333133
申请日期
1940.05.03
申请人
TWENTIETH CENTURY-FOX FILM CORPORATION
发明人
LAVIN JOHN MICHAEL
分类号
E04G1/15;E04G5/00
主分类号
E04G1/15
代理机构
代理人
主权项
地址
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