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发明名称
铅笔心以及其制造法
摘要
申请公布号
TW004782
申请公布日期
1969.05.01
申请号
TW011793
申请日期
1966.10.30
申请人
株式会社
发明人
塚原清
分类号
B43K
主分类号
B43K
代理机构
代理人
林敏生 台北巿南京东路二段一二五号七楼伟成第一大楼
主权项
地址
日本东京都中央区日本桥小网町7番2号
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