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发明名称
Aperfeiçoamentos em mecanismo dispensador de grafite para lapiseira
摘要
申请公布号
BR9301990(A)
申请公布日期
1995.01.10
申请号
BR1993PI01990
申请日期
1993.06.14
申请人
HSIANG YEN KUANG
发明人
YEN KUANG HSIANG
分类号
B43K21/04;B43K21/16;(IPC1-7):B43K21/04
主分类号
B43K21/04
代理机构
代理人
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