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发明名称
CONCRETE PAN FORMING SYSTEM
摘要
申请公布号
US3582035(A)
申请公布日期
1971.06.01
申请号
USD3582035
申请日期
1967.06.08
申请人
STRUCTURAL VOIDS INC.
发明人
DAVID R. WELLS;JAMES W. FRANKLIN
分类号
E04G11/40;E04G17/02;(IPC1-7):E04G11/36
主分类号
E04G11/40
代理机构
代理人
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地址
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