File for perforated sheets,申请号US19320644355-传众专利搜索

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法人/股东/高管

发明名称	File for perforated sheets
摘要
申请公布号	US1995590(A)	申请公布日期	1935.03.26
申请号	US19320644355	申请日期	1932.11.25
申请人	LUDWIG STAAB;GISELA STAAB	发明人	STAAB LUDWIG;STAAB GISELA
分类号	B42F13/16	主分类号	B42F13/16
代理机构		代理人
主权项
地址

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