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发明名称
Writing instrument
摘要
申请公布号
US2440829(A)
申请公布日期
1948.05.04
申请号
US19460660737
申请日期
1946.04.09
申请人
O'CONNOR ARTHUR F
发明人
O'CONNOR ARTHUR F.
分类号
B43K1/08;B43K7/02
主分类号
B43K1/08
代理机构
代理人
主权项
地址
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