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经营范围
发明名称
Rivet set or tool retaining means for pneumatic hammers and the like
摘要
申请公布号
US2224063(A)
申请公布日期
1940.12.03
申请号
US19380239574
申请日期
1938.11.08
申请人
ROBERTS SAMUEL S
发明人
ROBERTS SAMUEL S.
分类号
B21J15/36;B25D17/08
主分类号
B21J15/36
代理机构
代理人
主权项
地址
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