Способ приготовления штамповкой из листового металла замкнутых в стык полых деталей в форме тел вращения с концентрически выпуклыми и вогнутыми частями,申请号SU19400036438-传众专利搜索

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发明名称	Способ приготовления штамповкой из листового металла замкнутых в стык полых деталей в форме тел вращения с концентрически выпуклыми и вогнутыми частями
摘要
申请公布号	SU63380(A1)	申请公布日期	1943.11.30
申请号	SU19400036438	申请日期	1940.02.22
申请人	STAROBIN M.B.	发明人	STAROBIN M.B.
分类号	B21D11/20;B21D5/12;B21D22/18	主分类号	B21D11/20
代理机构		代理人
主权项
地址

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