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经营范围
发明名称
Improvements in writing instruments
摘要
申请公布号
GB597143(A)
申请公布日期
1948.01.19
申请号
GB19450024050
申请日期
1945.09.18
申请人
HANS REINHARD FEHLING
发明人
分类号
B43K7/03
主分类号
B43K7/03
代理机构
代理人
主权项
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