Door check device,申请号US19470776988-传众专利搜索

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发明名称	Door check device
摘要
申请公布号	US2473359(A)	申请公布日期	1949.06.14
申请号	US19470776988	申请日期	1947.09.30
申请人	BROWN ROBERT L	发明人	BROWN ROBERT L.
分类号	E05C17/20	主分类号	E05C17/20
代理机构		代理人
主权项
地址

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