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发明名称
Hexagonal structure
摘要
申请公布号
US2959256(A)
申请公布日期
1960.11.08
申请号
US19560564463
申请日期
1956.02.09
申请人
DEAM ARTHUR F
发明人
DEAM ARTHUR F.
分类号
E04B1/00;E04B1/24;E04C3/32
主分类号
E04B1/00
代理机构
代理人
主权项
地址
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