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发明名称
Clip for wallboards
摘要
申请公布号
US2227570(A)
申请公布日期
1941.01.07
申请号
US19380193583
申请日期
1938.03.02
申请人
NORMAN C. SPONG
发明人
BURSON HARRY H.
分类号
E04B2/58
主分类号
E04B2/58
代理机构
代理人
主权项
地址
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