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发明名称
DRAWING AID
摘要
申请公布号
AU1431170(A)
申请公布日期
1971.10.28
申请号
AU19700014311
申请日期
1970.04.24
申请人
JOHN DAVID FELL
发明人
JOHN DAVID FELL
分类号
B43L13/24;(IPC1-7):B43L1/12;G09B13/00;G09B4/06
主分类号
B43L13/24
代理机构
代理人
主权项
地址
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