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经营范围
发明名称
Improvements in stylographic pen
摘要
申请公布号
GB542547(A)
申请公布日期
1942.01.14
申请号
GB19400016653
申请日期
1940.11.19
申请人
JOSEPH WALLACE
发明人
分类号
B43K8/18
主分类号
B43K8/18
代理机构
代理人
主权项
地址
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