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经营范围
发明名称
Process of producing stencils
摘要
申请公布号
US2340485(A)
申请公布日期
1944.02.01
申请号
US19410396681
申请日期
1941.06.05
申请人
EDWARD O. NORRIS, INC.
发明人
NORRIS EDWARD O.
分类号
B41C1/14
主分类号
B41C1/14
代理机构
代理人
主权项
地址
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