Double-door-operating device,申请号US19380228570-传众专利搜索

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发明名称	Double-door-operating device
摘要
申请公布号	US2206051(A)	申请公布日期	1940.07.02
申请号	US19380228570	申请日期	1938.09.06
申请人	ROOF RALPH H	发明人	ROOF RALPH H.
分类号	E05F17/00	主分类号	E05F17/00
代理机构		代理人
主权项
地址

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