Process for the cold rolling of sections which are to have different hardnesses and strengths at different cross sectional parts,申请号GB19350022555-传众专利搜索

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发明名称	Process for the cold rolling of sections which are to have different hardnesses and strengths at different cross sectional parts
摘要
申请公布号	GB439940(A)	申请公布日期	1935.12.17
申请号	GB19350022555	申请日期	1935.08.09
申请人	RUDOLF BENJAMIN	发明人
分类号	B21B1/08;B21B1/30	主分类号	B21B1/08
代理机构		代理人
主权项
地址

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