Screw cap loosener,申请号US19480040210-传众专利搜索

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发明名称	Screw cap loosener
摘要
申请公布号	US2503683(A)	申请公布日期	1950.04.11
申请号	US19480040210	申请日期	1948.07.23
申请人	PERKINS GEORGE G	发明人	PERKINS GEORGE G.
分类号	B67B7/18	主分类号	B67B7/18
代理机构		代理人
主权项
地址

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