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发明名称
SWITCHING APPARATUS
摘要
申请公布号
SU740966(A1)
申请公布日期
1980.06.18
申请号
SU19772552318
申请日期
1977.12.09
申请人
PETROV VLADIMIR ,SU
发明人
PETROV VLADIMIR ,SU
分类号
E21F15/08;B65G53/56;(IPC1-7):B65G53/56
主分类号
E21F15/08
代理机构
代理人
主权项
地址
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