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发明名称
TUBING BLOCK
摘要
申请公布号
SU1606700(A1)
申请公布日期
1990.11.15
申请号
SU19884362641
申请日期
1988.01.12
申请人
NII BETONA ZHELEZOBETONA GOSS
发明人
ZURABYAN ARTEM S,SU;MKRTUMYAN VLADIMIR A,SU
分类号
E21D11/00;E21D11/08;(IPC1-7):21D11/00
主分类号
E21D11/00
代理机构
代理人
主权项
地址
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