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发明名称
Method of making writing tips for ball point pens
摘要
申请公布号
US3099082(A)
申请公布日期
1963.07.30
申请号
US19600069428
申请日期
1960.11.15
申请人
JENS HENRIKSEN ERNST JOHAN
发明人
HENRIKSEN ERNST JOHAN JENS
分类号
B43K1/08
主分类号
B43K1/08
代理机构
代理人
主权项
地址
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