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发明名称
Improvements in or relating to writing instruments
摘要
申请公布号
GB669973(A)
申请公布日期
1952.04.09
申请号
GB19470000451
申请日期
1947.01.06
申请人
ERNST JOHAN JENS HENRIKSEN
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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