Ventilating window shade,申请号US19280278150-传众专利搜索

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发明名称	Ventilating window shade
摘要
申请公布号	US1743345(A)	申请公布日期	1930.01.14
申请号	US19280278150	申请日期	1928.05.16
申请人	SAMUEL HEILWEIL;BENJAMIN FREIDBERG	发明人	HEILWEIL SAMUEL;FREIDBERG BENJAMIN
分类号	A47H23/04;E06B9/40	主分类号	A47H23/04
代理机构		代理人
主权项
地址

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