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发明名称
Building panel construction
摘要
申请公布号
US2968070(A)
申请公布日期
1961.01.17
申请号
US19570701863
申请日期
1957.12.10
申请人
WOLSTEAD OLAF P
发明人
WOLSTEAD OLAF P.
分类号
E04B2/78;E04B9/04;E04B9/28
主分类号
E04B2/78
代理机构
代理人
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