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发明名称
Improvements in the filling of ball-point fountain pens
摘要
申请公布号
GB678083(A)
申请公布日期
1952.08.27
申请号
GB19480021113
申请日期
1948.08.10
申请人
JOSIAH CLARK CHATFIELD;CORNELIUS STEPHEN LEFFERDINK
发明人
分类号
B43K7/04
主分类号
B43K7/04
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