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经营范围
发明名称
Hectograph copying-machine
摘要
申请公布号
GB385691(A)
申请公布日期
1933.01.05
申请号
GB19310028912
申请日期
1931.10.17
申请人
THE U. S. DUPLICATOR COMPANY
发明人
分类号
B41L9/10
主分类号
B41L9/10
代理机构
代理人
主权项
地址
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