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发明名称
DRAWING BLOCK
摘要
申请公布号
SU1176991(A1)
申请公布日期
1985.09.07
申请号
SU19823513589
申请日期
1982.11.24
申请人
CHEREPOVETSKIJ SEVERO-ZAPADNOGO ZAOCHNOGO POLT INSTITUTA
发明人
VOLOSHCHUK VIKTOR U,SU
分类号
B21C1/14;(IPC1-7):B21C1/14
主分类号
B21C1/14
代理机构
代理人
主权项
地址
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