Elevator door safety lock,申请号US19520288163-传众专利搜索

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发明名称	Elevator door safety lock
摘要
申请公布号	US2671531(A)	申请公布日期	1954.03.09
申请号	US19520288163	申请日期	1952.05.16
申请人	HOLMSTROM MAURITZ C	发明人	HOLMSTROM MAURITZ C.
分类号	B66B13/20	主分类号	B66B13/20
代理机构		代理人
主权项
地址

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