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发明名称	OPERATION OF LIFT DOORS
摘要
申请公布号	CA535851(A)	申请公布日期	1957.01.15
申请号	CAD535851	申请日期
申请人	DEWHURST AND PARTNER LIMITED	发明人	ALBERT J. C. WARD;GEORGE ERIC MINNS
分类号		主分类号
代理机构		代理人
主权项
地址

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