Способ придания плоскому листовому металлу двоякой кривизны,申请号SU19470353714-传众专利搜索

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发明名称	Способ придания плоскому листовому металлу двоякой кривизны
摘要
申请公布号	SU70683(A1)	申请公布日期	1947.11.30
申请号	SU19470353714	申请日期	1947.04.18
申请人	VEREVKIN S.I.	发明人	VEREVKIN S.I.
分类号	B21D5/08;B21D51/18	主分类号	B21D5/08
代理机构		代理人
主权项
地址

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