DEVICE FOR OPENING AND CLOSING DOORS,申请号CAD314781-传众专利搜索

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发明名称	DEVICE FOR OPENING AND CLOSING DOORS
摘要
申请公布号	CA314781(A)	申请公布日期	1931.09.01
申请号	CAD314781	申请日期
申请人	MARVIN STEELE WESTOVER	发明人	MARVIN STEELE WESTOVER
分类号		主分类号
代理机构		代理人
主权项
地址

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