DISPLAY UNIT FOR ELEVATOR WAITING TIME,申请号HK19810000495-传众专利搜索

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发明名称	DISPLAY UNIT FOR ELEVATOR WAITING TIME
摘要
申请公布号	HK49581(A)	申请公布日期	1981.10.23
申请号	HK19810000495	申请日期	1981.10.15
申请人	HITACHI LTD	发明人
分类号	B66B3/00;(IPC1-7):B66B3/00	主分类号	B66B3/00
代理机构		代理人
主权项
地址

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