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经营范围
发明名称
Hectograph blanket
摘要
申请公布号
US2288152(A)
申请公布日期
1942.06.30
申请号
US19410391707
申请日期
1941.05.03
申请人
DITTO, INCORPORATED
发明人
BJORKSTEN JOHAN
分类号
B41M5/08
主分类号
B41M5/08
代理机构
代理人
主权项
地址
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