Способ отливки полых деталей,申请号SU19490408323-传众专利搜索

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发明名称	Способ отливки полых деталей
摘要
申请公布号	SU88832(A1)	申请公布日期	1950.11.30
申请号	SU19490408323	申请日期	1949.12.07
申请人	FROLOV F.A.	发明人	FROLOV F.A.
分类号	B22C1/02;B22D29/00	主分类号	B22C1/02
代理机构		代理人
主权项
地址

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