Способ стыковой электрической сварки труб,申请号SU19320120837-传众专利搜索

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发明名称	Способ стыковой электрической сварки труб
摘要
申请公布号	SU41094(A1)	申请公布日期	1935.01.31
申请号	SU19320120837	申请日期	1932.12.24
申请人	VASILEV N.N.	发明人	VASILEV N.N.
分类号	B23K11/02	主分类号	B23K11/02
代理机构		代理人
主权项
地址

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