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发明名称
CONCEALED WELD CONSTRUCTION
摘要
申请公布号
US3531147(A)
申请公布日期
1970.09.29
申请号
USD3531147
申请日期
1969.04.14
申请人
ART METAL INC.
发明人
JOHN H. JOHNSON
分类号
F16B12/06;F16B12/40;(IPC1-7):F16B7/00;F16B12/50
主分类号
F16B12/06
代理机构
代理人
主权项
地址
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