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发明名称
Improvements relating to devices for preparing perspective drawings of objects and scenes
摘要
申请公布号
GB515655(A)
申请公布日期
1939.12.11
申请号
GB19380018822
申请日期
1938.06.24
申请人
JOZEF KRUCZKIEWICZ
发明人
分类号
B43L13/14
主分类号
B43L13/14
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代理人
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