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经营范围
发明名称
MECHANICAL PENCIL
摘要
申请公布号
SU1509288(A1)
申请公布日期
1989.09.23
申请号
SU19884370559
申请日期
1988.01.26
申请人
DRUZHININ YURIJ A,SU
发明人
DRUZHININ YURIJ A,SU
分类号
B43K21/00
主分类号
B43K21/00
代理机构
代理人
主权项
地址
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