Стан для изготовления труб со спиральным швом,申请号SU19570572613-传众专利搜索

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发明名称	Стан для изготовления труб со спиральным швом
摘要
申请公布号	SU113478(A1)	申请公布日期	1957.11.30
申请号	SU19570572613	申请日期	1957.05.03
申请人	SARYCHEV A.A.;TSELIKOV A.I.	发明人	SARYCHEV A.A.;TSELIKOV A.I.
分类号	B21C37/12	主分类号	B21C37/12
代理机构		代理人
主权项
地址

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