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发明名称
Perspective drawing device and combination of perspective and parallel drawing device
摘要
申请公布号
US3318003(A)
申请公布日期
1967.05.09
申请号
US19650486158
申请日期
1965.09.09
申请人
PIROGOW IGOR A
发明人
PIROGOW IGOR A.
分类号
B43L13/14
主分类号
B43L13/14
代理机构
代理人
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地址
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