Chuck for manufacture of finned tubing,申请号US19470782141-传众专利搜索

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发明名称	Chuck for manufacture of finned tubing
摘要
申请公布号	US2538950(A)	申请公布日期	1951.01.23
申请号	US19470782141	申请日期	1947.10.25
申请人	EXTENDED SURFACE DIVISION OF DAVID E. KENNEDY, INC.	发明人	SCHRYBER EMIL A.
分类号	B21C37/26	主分类号	B21C37/26
代理机构		代理人
主权项
地址

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