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发明名称
APPLIANCE FOR DRAWING FLAT CURVES
摘要
申请公布号
SU697355(A1)
申请公布日期
1979.11.15
申请号
SU19782618249
申请日期
1978.05.22
申请人
BOK NIKOLAJ B,SU
发明人
BOK NIKOLAJ B,SU
分类号
B43L13/00;(IPC1-7):B43L13/00
主分类号
B43L13/00
代理机构
代理人
主权项
地址
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