Elevator door system,申请号US19270207831-传众专利搜索

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发明名称	Elevator door system
摘要
申请公布号	US1872770(A)	申请公布日期	1932.08.23
申请号	US19270207831	申请日期	1927.07.23
申请人	A. B. SEE ELEVATOR COMPANY, INC.	发明人	LINDSTROM NILS O.
分类号	B66B13/14	主分类号	B66B13/14
代理机构		代理人
主权项
地址

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