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发明名称
Four-way blocking clamp
摘要
申请公布号
US1772514(A)
申请公布日期
1930.08.12
申请号
US19280306896
申请日期
1928.09.19
申请人
NELS J. BILLSTROM
发明人
HOOGERHYDE JAMES
分类号
B25B1/20;B25B1/24;B25B5/14;B25B5/16
主分类号
B25B1/20
代理机构
代理人
主权项
地址
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