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发明名称
PARABOLA DRAWING APPLIANCE
摘要
申请公布号
SU1419935(A1)
申请公布日期
1988.08.30
申请号
SU19864204363
申请日期
1986.12.16
申请人
OMSKIJ POLT INSTITUT
发明人
YURKOV VIKTOR YU,SU;BALYKINA OLGA N,SU
分类号
B43L11/02
主分类号
B43L11/02
代理机构
代理人
主权项
地址
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