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发明名称
IMPROVED AUTOMATIC PENCIL
摘要
申请公布号
AU5513490(A)
申请公布日期
1991.11.21
申请号
AU19900055134
申请日期
1990.05.17
申请人
TYNG-JEN SHEU
发明人
TYNG-JEN SHEU
分类号
B43K21/06
主分类号
B43K21/06
代理机构
代理人
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