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发明名称
Improvements in or relating to fountain pens
摘要
申请公布号
GB359204(A)
申请公布日期
1931.10.22
申请号
GB19300031446
申请日期
1930.10.20
申请人
ROBERT PETER MARKSTEIN
发明人
分类号
B43K5/17;B43K23/12
主分类号
B43K5/17
代理机构
代理人
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地址
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