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发明名称
Improvements in or relating to reservoir pens
摘要
申请公布号
GB681834(A)
申请公布日期
1952.10.29
申请号
GB19500008052
申请日期
1950.03.31
申请人
FRANK HEWITT
发明人
分类号
B43K8/20
主分类号
B43K8/20
代理机构
代理人
主权项
地址
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