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发明名称
Improvements in reservoir pens
摘要
申请公布号
GB683886(A)
申请公布日期
1952.12.10
申请号
GB19490013722
申请日期
1949.05.23
申请人
ERNEST VERRINDER WAGNER
发明人
分类号
B43K7/035
主分类号
B43K7/035
代理机构
代理人
主权项
地址
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