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发明名称
APPARATUS FOR DRAWING ARCS OF CIRCLES
摘要
申请公布号
SU1511152(A1)
申请公布日期
1989.09.30
申请号
SU19884358293
申请日期
1988.01.04
申请人
KRIVOROZHSKIJ GORNORUDNYJ INSTITUT
发明人
SALKOV NIKOLAJ A,SU;SALKOV ANDREJ V,SU;SALKOVA VERA A,SU
分类号
B43L9/00
主分类号
B43L9/00
代理机构
代理人
主权项
地址
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