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经营范围
发明名称
Improvements in and relating to ribbon spools
摘要
申请公布号
GB983552(A)
申请公布日期
1965.02.17
申请号
GB19610017040
申请日期
1961.05.10
申请人
WALTER DAVID LANDGRAF
发明人
分类号
B41J32/00
主分类号
B41J32/00
代理机构
代理人
主权项
地址
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