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发明名称
METHOD OF DRAWING HOLLOW PARTS
摘要
申请公布号
SU988412(A1)
申请公布日期
1983.01.15
申请号
SU19813298148
申请日期
1981.06.11
申请人
LIPETSKIJ POLT INSTITUT
发明人
ZHELEZNOV YURIJ D,SU;SHIBAKOV VLADIMIR G,SU;KUZNETSOV LEONID A,SU;RYABTSEVA LYUDMILA A,SU;SHIBAKOV IGOR G,SU
分类号
B21D22/00;B21D22/20;(IPC1-7):B21D22/00
主分类号
B21D22/00
代理机构
代理人
主权项
地址
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