Manufacture of one-piece window envelope blanks,申请号US19290356567-传众专利搜索

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发明名称	Manufacture of one-piece window envelope blanks
摘要
申请公布号	US1951445(A)	申请公布日期	1934.03.20
申请号	US19290356567	申请日期	1929.04.19
申请人	TRANSO ENVELOPE CO.	发明人	SAUERMAN ERNEST W.
分类号	B31B23/00	主分类号	B31B23/00
代理机构		代理人
主权项
地址

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