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发明名称
SCRAPER
摘要
申请公布号
SU1305262(A1)
申请公布日期
1987.04.23
申请号
SU19853954736
申请日期
1985.09.18
申请人
VNI PROEKTNO-IZYSKATELSKIJ I TRUBOPROVODNOGO GIDROTRANSPORTA
发明人
GVELESIANI KONSTANTIN SH,SU
分类号
E02F3/54
主分类号
E02F3/54
代理机构
代理人
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