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发明名称
SCRAPER TRAIN
摘要
申请公布号
SU1657576(A1)
申请公布日期
1991.06.23
申请号
SU19894724440
申请日期
1989.07.31
申请人
DN INZH-STR INSTITUT
发明人
MELASHICH VASILIJ V,SU;KHMARA LEONID A,SU
分类号
E02F3/64
主分类号
E02F3/64
代理机构
代理人
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地址
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