Protective cover for books,申请号US19390252708-传众专利搜索

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发明名称	Protective cover for books
摘要
申请公布号	US2190055(A)	申请公布日期	1940.02.13
申请号	US19390252708	申请日期	1939.01.25
申请人	ELI DAVIDSON	发明人	DAVIDSON ELI
分类号	B42D3/04	主分类号	B42D3/04
代理机构		代理人
主权项
地址

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