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发明名称
IMPROVED MECHANICAL PENCIL
摘要
申请公布号
GB2238986(B)
申请公布日期
1993.08.25
申请号
GB19890027962
申请日期
1989.12.11
申请人
* MOSU PENCIL CORPORATION
发明人
LIN * GO-SING
分类号
B43K21/00;B43K21/22
主分类号
B43K21/00
代理机构
代理人
主权项
地址
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