Signal system for elevators,申请号US19310558527-传众专利搜索

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发明名称	Signal system for elevators
摘要
申请公布号	US2008397(A)	申请公布日期	1935.07.16
申请号	US19310558527	申请日期	1931.08.21
申请人	WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY	发明人	LEWIS FRANK E.
分类号	B66B3/00	主分类号	B66B3/00
代理机构		代理人
主权项
地址

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