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发明名称
DUAL WRITING ELEMENT RETRACTABLE PEN
摘要
申请公布号
EP0447507(A4)
申请公布日期
1992.11.04
申请号
EP19900913274
申请日期
1990.08.21
申请人
LONGARZO, ROLAND
发明人
LONGARZO, ROLAND
分类号
B43K24/14;(IPC1-7):B43K27/00
主分类号
B43K24/14
代理机构
代理人
主权项
地址
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