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发明名称
MAGNETIC ROLLER
摘要
申请公布号
SG28584(G)
申请公布日期
1985.03.08
申请号
SG19840000285
申请日期
1984.04.05
申请人
OTIS ELEVATOR COMPANY
发明人
分类号
B66B13/12;H01F7/02;(IPC1-7):H01F7/02
主分类号
B66B13/12
代理机构
代理人
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