Plumb protector for elevator guides,申请号US19290336848-传众专利搜索

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发明名称	Plumb protector for elevator guides
摘要
申请公布号	US1780501(A)	申请公布日期	1930.11.04
申请号	US19290336848	申请日期	1929.02.01
申请人	OSINGA THOMAS J	发明人	OSINGA THOMAS J.
分类号	G01C15/10	主分类号	G01C15/10
代理机构		代理人
主权项
地址

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