Mechanism for collapsing necks of paper bags,申请号US19310548912-传众专利搜索

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发明名称	Mechanism for collapsing necks of paper bags
摘要
申请公布号	US1931280(A)	申请公布日期	1933.10.17
申请号	US19310548912	申请日期	1931.07.06
申请人	B. F. GUMP CO.	发明人	ALLISON CHARLES F.
分类号	B65B7/06	主分类号	B65B7/06
代理机构		代理人
主权项
地址

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