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发明名称
Writing instruments
摘要
申请公布号
US2839030(A)
申请公布日期
1958.06.17
申请号
US19550482639
申请日期
1955.01.18
申请人
CECIL ZANG
发明人
ZANG CECIL
分类号
B43K24/08;H04Q3/00
主分类号
B43K24/08
代理机构
代理人
主权项
地址
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