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发明名称
DRAWING APPARATUS
摘要
申请公布号
CA560511(A)
申请公布日期
1958.07.22
申请号
CAD560511
申请日期
申请人
ERIC L. DARGUE
发明人
ERIC L. DARGUE
分类号
主分类号
代理机构
代理人
主权项
地址
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