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发明名称
ELLIPSOGRAPH
摘要
申请公布号
GB8524676(D0)
申请公布日期
1985.11.13
申请号
GB19850024676
申请日期
1985.10.07
申请人
CHENG, T-F;CHOU, L-C
发明人
分类号
B43L11/04;B43L13/24;(IPC1-7):B43L11/04
主分类号
B43L11/04
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代理人
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