Heat retaining device for window structures,申请号US19320647811-传众专利搜索

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发明名称	Heat retaining device for window structures
摘要
申请公布号	US2009917(A)	申请公布日期	1935.07.30
申请号	US19320647811	申请日期	1932.12.17
申请人	FLANAGAN JOHN M	发明人	FLANAGAN JOHN M.
分类号	E06B9/24	主分类号	E06B9/24
代理机构		代理人
主权项
地址

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