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发明名称
ELEVATOR CALL SIGNALLING SYSTEM
摘要
申请公布号
GB8511847(D0)
申请公布日期
1985.06.19
申请号
GB19850011847
申请日期
1985.05.10
申请人
HITACHI LTD
发明人
分类号
B66B1/16;B66B1/46
主分类号
B66B1/16
代理机构
代理人
主权项
地址
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