Improvements in apparatus and method for making valve bags,申请号GB19540009183-传众专利搜索

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发明名称	Improvements in apparatus and method for making valve bags
摘要
申请公布号	GB751998(A)	申请公布日期	1956.07.04
申请号	GB19540009183	申请日期	1954.03.29
申请人	KRAFT BAG CORPORATION	发明人
分类号	B31B39/00	主分类号	B31B39/00
代理机构		代理人
主权项
地址

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