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发明名称
SWITCH FROG
摘要
申请公布号
SU1654409(A1)
申请公布日期
1991.06.07
申请号
SU19894676306
申请日期
1989.04.11
申请人
KASYLKASOV ZHENYS M,SU
发明人
KASYLKASOV ZHENYS M,SU
分类号
E01B7/12
主分类号
E01B7/12
代理机构
代理人
主权项
地址
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