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经营范围
发明名称
Reservoir pen
摘要
申请公布号
US1961807(A)
申请公布日期
1934.06.05
申请号
US19320649261
申请日期
1932.12.29
申请人
HERBERT WELD
发明人
WELD HERBERT
分类号
B43K8/00
主分类号
B43K8/00
代理机构
代理人
主权项
地址
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