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发明名称
DEVICE FOR PERSPECTIVE DRAWING
摘要
申请公布号
CA512607(A)
申请公布日期
1955.05.03
申请号
CAD512607
申请日期
申请人
PRESNA MECHANIKA
发明人
ARTHUR SALNER
分类号
主分类号
代理机构
代理人
主权项
地址
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