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发明名称
Attachment for drawing pens
摘要
申请公布号
US1852944(A)
申请公布日期
1932.04.05
申请号
US19310549541
申请日期
1931.07.08
申请人
MILLER THOMAS CHARLES
发明人
THOMAS CHARLES MILLER
分类号
B43K17/00
主分类号
B43K17/00
代理机构
代理人
主权项
地址
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