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经营范围
发明名称
Improvements in fountain pens
摘要
申请公布号
GB722046(A)
申请公布日期
1955.01.19
申请号
GB19520011139
申请日期
1952.05.02
申请人
ERNEST VERRINDER WAGNER
发明人
分类号
B43K5/18
主分类号
B43K5/18
代理机构
代理人
主权项
地址
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