Automatic window opener,申请号US19380245660-传众专利搜索

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发明名称	Automatic window opener
摘要
申请公布号	US2244801(A)	申请公布日期	1941.06.10
申请号	US19380245660	申请日期	1938.12.14
申请人	MILTON PETERSON CARL	发明人	PETERSON CARL MILTON
分类号	E05F11/38	主分类号	E05F11/38
代理机构		代理人
主权项
地址

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