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发明名称
ABNORMAL LIFT SPEED DETECTOR
摘要
申请公布号
GB2075219(A)
申请公布日期
1981.11.11
申请号
GB19810012063
申请日期
1981.04.16
申请人
HITACHI LTD
发明人
分类号
B66B1/46;B66B5/06;(IPC1-7):B66B5/06
主分类号
B66B1/46
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代理人
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