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经营范围
发明名称
Method of making a metal embossing matrix such as an embossing roll
摘要
申请公布号
US3226800(A)
申请公布日期
1966.01.04
申请号
US19620223360
申请日期
1962.09.13
申请人
FENLASON CHARLES E
发明人
FENLASON CHARLES E.
分类号
B22C7/00;B41C3/08;B41N7/00;C23C4/18;C25D1/10
主分类号
B22C7/00
代理机构
代理人
主权项
地址
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