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经营范围
发明名称
APPARATUS FOR HEATING AND DEWATERING BITUMEN
摘要
申请公布号
SU633972(A1)
申请公布日期
1978.11.25
申请号
SU19772500407
申请日期
1977.06.01
申请人
LETKOV ALEKSANDR N,SU;MOREV VALERIJ YA,SU
发明人
LETKOV ALEKSANDR N,SU;MOREV VALERIJ YA,SU
分类号
E01C19/08;C10C3/08;(IPC1-7):E01C19/08
主分类号
E01C19/08
代理机构
代理人
主权项
地址
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