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发明名称
Writing instruments
摘要
申请公布号
US2979030(A)
申请公布日期
1961.04.11
申请号
US19570642203
申请日期
1957.02.25
申请人
THE PARKER PEN COMPANY
发明人
HARRINGTON WILLIAM J.
分类号
B43K1/00;B43K5/00;B43K7/00
主分类号
B43K1/00
代理机构
代理人
主权项
地址
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