Vacuum sealing machine and method,申请号US19510209648-传众专利搜索

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发明名称	Vacuum sealing machine and method
摘要
申请公布号	US2676440(A)	申请公布日期	1954.04.27
申请号	US19510209648	申请日期	1951.02.06
申请人	CAMPBELL SAMUEL J	发明人	CAMPBELL SAMUEL J.
分类号	B65B31/02	主分类号	B65B31/02
代理机构		代理人
主权项
地址

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