Способ предупреждения внутреннего обледенения водопроводов, деривационных каналов и т.п.,申请号SU19470358631-传众专利搜索

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发明名称	Способ предупреждения внутреннего обледенения водопроводов, деривационных каналов и т.п.
摘要
申请公布号	SU75094(A1)	申请公布日期	1948.11.30
申请号	SU19470358631	申请日期	1947.08.27
申请人	BUSHNEVSKIJ V.V.	发明人	BUSHNEVSKIJ V.V.
分类号	E03B7/12;F16L53/00	主分类号	E03B7/12
代理机构		代理人
主权项
地址

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