Verwendung von aufblasbaren Hohlkoerpern bei der Herstellung von Kiesfilterrohren,申请号DE1961B063264-传众专利搜索

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发明名称	Verwendung von aufblasbaren Hohlkoerpern bei der Herstellung von Kiesfilterrohren
摘要
申请公布号	DE1215037(B)	申请公布日期	1966.04.21
申请号	DE1961B063264	申请日期	1961.07.14
申请人	JOSEF BOLEWSKI	发明人	BOLEWSKI JOSEF
分类号	B28B7/32;F16L9/10	主分类号	B28B7/32
代理机构		代理人
主权项
地址

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