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发明名称
Improvements in ball-pointed writing instruments
摘要
申请公布号
GB822245(A)
申请公布日期
1959.10.21
申请号
GB19570018460
申请日期
1957.06.11
申请人
ROLLTIP (ENGLAND) LIMITED
发明人
EDWARDS ERNEST ETHELBERT
分类号
B43K24/08
主分类号
B43K24/08
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