Process and apparatus for cold shaping steel,申请号US19500161760-传众专利搜索

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发明名称	Process and apparatus for cold shaping steel
摘要
申请公布号	US2748932(A)	申请公布日期	1956.06.05
申请号	US19500161760	申请日期	1950.05.13
申请人	AMERICAN RADIATOR & STANDARD SANITARY CORPORATION	发明人	KAUL BEN
分类号	B21C23/03;B21K21/00	主分类号	B21C23/03
代理机构		代理人
主权项
地址

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