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发明名称
ELECTROMAGNETIC HAMMER FOR UNDERWATER WORK
摘要
申请公布号
SU939753(A1)
申请公布日期
1982.06.30
申请号
SU19803221516
申请日期
1980.12.18
申请人
INST GORNOGO DELA SO AN SSSR
发明人
PROKOPENKO ANATOLIJ I,SU;RYASHENTSEV NIKOLAJ P,SU
分类号
E21C37/00;E02D7/06;(IPC1-7):E21C3/16
主分类号
E21C37/00
代理机构
代理人
主权项
地址
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