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经营范围
发明名称
Engraver's compound
摘要
申请公布号
US2343573(A)
申请公布日期
1944.03.07
申请号
US19420427591
申请日期
1942.01.21
申请人
OLSON ALBERT C
发明人
OLSON ALBERT C.
分类号
B41C1/02
主分类号
B41C1/02
代理机构
代理人
主权项
地址
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