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发明名称
WRITING INSTRUMENT
摘要
申请公布号
US3520627(A)
申请公布日期
1970.07.14
申请号
USD3520627
申请日期
1968.08.12
申请人
MITSUBISHI PENCIL CO. LTD.
发明人
YASUHARU SUZUKI
分类号
B43K19/16;(IPC1-7):B43K19/14
主分类号
B43K19/16
代理机构
代理人
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