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发明名称
Tower or mast
摘要
申请公布号
US2369533(A)
申请公布日期
1945.02.13
申请号
US19430478690
申请日期
1943.03.10
申请人
HAROLD COHEN
发明人
COHEN HAROLD
分类号
E04H12/18
主分类号
E04H12/18
代理机构
代理人
主权项
地址
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