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经营范围
发明名称
High-speed electrolytic marking
摘要
申请公布号
US2636848(A)
申请公布日期
1953.04.28
申请号
US19480039549
申请日期
1948.07.19
申请人
RADIO CORPORATION
发明人
GREIG HAROLD GREY
分类号
B41M5/20
主分类号
B41M5/20
代理机构
代理人
主权项
地址
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