Способ изготовления входных коллекторов для вентиляторов и воздуховодов,申请号SU19480387815-传众专利搜索

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发明名称	Способ изготовления входных коллекторов для вентиляторов и воздуховодов
摘要
申请公布号	SU78660(A1)	申请公布日期	1948.11.30
申请号	SU19480387815	申请日期	1948.11.24
申请人	BYCHKOV A.G.	发明人	BYCHKOV A.G.
分类号	F04D29/40	主分类号	F04D29/40
代理机构		代理人
主权项
地址

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