Window and flap operator,申请号US19290332124-传众专利搜索

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发明名称	Window and flap operator
摘要
申请公布号	US1808827(A)	申请公布日期	1931.06.09
申请号	US19290332124	申请日期	1929.01.12
申请人	WOLD ROSCOE G	发明人	WOLD ROSCOE G.
分类号	E05C17/18	主分类号	E05C17/18
代理机构		代理人
主权项
地址

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