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发明名称
IMPROVEMENTS IN/RELATING TO SCREW CONVEYORS
摘要
申请公布号
GB8804312(D0)
申请公布日期
1988.03.23
申请号
GB19880004312
申请日期
1988.02.24
申请人
APV PLC
发明人
分类号
主分类号
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