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发明名称
KNOCK COVER OF MECHANICAL PENCIL
摘要
申请公布号
JPH0971091(A)
申请公布日期
1997.03.18
申请号
JP19950256925
申请日期
1995.09.07
申请人
MITSUBISHI PENCIL CO LTD
发明人
SAITO AKIO
分类号
B43K21/00;(IPC1-7):B43K21/00
主分类号
B43K21/00
代理机构
代理人
主权项
地址
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