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经营范围
发明名称
Rifling device
摘要
申请公布号
US2872720(A)
申请公布日期
1959.02.10
申请号
US19570657212
申请日期
1957.05.06
申请人
OLIN MATHIESON CHEMICAL CORPORATION
发明人
RAMSAY MARCUS
分类号
B21C37/15
主分类号
B21C37/15
代理机构
代理人
主权项
地址
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