Door operating mechanism,申请号US19390291925-传众专利搜索

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发明名称	Door operating mechanism
摘要
申请公布号	US2253170(A)	申请公布日期	1941.08.19
申请号	US19390291925	申请日期	1939.08.25
申请人	GENERAL ELECTRIC COMPANY	发明人	DUNHAM GEORGE W.
分类号	E05F15/12	主分类号	E05F15/12
代理机构		代理人
主权项
地址

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