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发明名称
Improvements in a ball point pen, pencil or other like writing instrument
摘要
申请公布号
GB783208(A)
申请公布日期
1957.09.18
申请号
GB19550012253
申请日期
1955.04.28
申请人
EDWARD JOHN KELLY
发明人
分类号
B43K24/06;B43K24/14
主分类号
B43K24/06
代理机构
代理人
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