Wedge type safety brake,申请号US19540412861-传众专利搜索

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发明名称	Wedge type safety brake
摘要
申请公布号	US2717663(A)	申请公布日期	1955.09.13
申请号	US19540412861	申请日期	1954.02.26
申请人	MARTIN J. BROPHY	发明人	HIGGINS GEORGE D.
分类号	B66B5/22	主分类号	B66B5/22
代理机构		代理人
主权项
地址

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