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发明名称
Writing instrument provided with display feature
摘要
申请公布号
US3315395(A)
申请公布日期
1967.04.25
申请号
US19650486429
申请日期
1965.09.10
申请人
KIRKLEN GEORGE W
发明人
KIRKLEN GEORGE W.
分类号
B43K29/007
主分类号
B43K29/007
代理机构
代理人
主权项
地址
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