Double hung casement window,申请号US19320638159-传众专利搜索

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发明名称	Double hung casement window
摘要
申请公布号	US2020926(A)	申请公布日期	1935.11.12
申请号	US19320638159	申请日期	1932.10.17
申请人	FERRER ARMENTO	发明人	ARMENTO FERRER
分类号	E06B3/50	主分类号	E06B3/50
代理机构		代理人
主权项
地址

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