Method of making refrigerating tubing,申请号US19530356376-传众专利搜索

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发明名称	Method of making refrigerating tubing
摘要
申请公布号	US2845695(A)	申请公布日期	1958.08.05
申请号	US19530356376	申请日期	1953.05.21
申请人	GENERAL MOTORS CORPORATION	发明人	GRENELL LELAND H.
分类号	B21C37/14;B21D53/04	主分类号	B21C37/14
代理机构		代理人
主权项
地址

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