Safety and release valve for pressure cookers,申请号US19480005472-传众专利搜索

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发明名称	Safety and release valve for pressure cookers
摘要
申请公布号	US2590620(A)	申请公布日期	1952.03.25
申请号	US19480005472	申请日期	1948.01.30
申请人	SPEED-MEAL CORPORATION	发明人	HOLBIK FRANK J.
分类号	A47J27/09	主分类号	A47J27/09
代理机构		代理人
主权项
地址

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