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经营范围
发明名称
ROTARY WORKING MEMBER OF HEADING MACHINE
摘要
申请公布号
SU989081(A1)
申请公布日期
1983.01.15
申请号
SU19813301389
申请日期
1981.04.09
申请人
SP KT BYURO "GLAVTONNELMETROSTROYA"
发明人
SAVELEV LEONID I,SU;OSTROVSKIJ IGOR S,SU
分类号
E21D9/11;E21B10/10;E21C27/22;(IPC1-7):21D9/10
主分类号
E21D9/11
代理机构
代理人
主权项
地址
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