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经营范围
发明名称
Improvements relating to the reservoirs of ball point pens
摘要
申请公布号
GB721473(A)
申请公布日期
1955.01.05
申请号
GB19520004897
申请日期
1952.02.25
申请人
OSMIOR
发明人
分类号
B43K7/08
主分类号
B43K7/08
代理机构
代理人
主权项
地址
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