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经营范围
发明名称
Improvements in and relating to reservoir writing instruments
摘要
申请公布号
GB633879(A)
申请公布日期
1949.12.30
申请号
GB19470016738
申请日期
1945.04.19
申请人
HENRY GEORGE MARTIN
发明人
分类号
B43K7/03
主分类号
B43K7/03
代理机构
代理人
主权项
地址
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