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发明名称
Retractable writing instrument
摘要
申请公布号
US2855896(A)
申请公布日期
1958.10.14
申请号
US19540414907
申请日期
1954.03.08
申请人
HARTLEY PEN COMPANY
发明人
SEARS HARTLEY M.
分类号
B43K24/03
主分类号
B43K24/03
代理机构
代理人
主权项
地址
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