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发明名称
Spring hammer
摘要
申请公布号
US1775188(A)
申请公布日期
1930.09.09
申请号
US19290388664
申请日期
1929.08.27
申请人
GEORGE R. KOLLOCK
发明人
BOWEN RUSSELL C.
分类号
B25D11/10;B25D15/02
主分类号
B25D11/10
代理机构
代理人
主权项
地址
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