Beton- o. dgl. Rohr mit nach den Seiten zunehmender Wandstaerke,申请号DE1929B143404D-传众专利搜索

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发明名称	Beton- o. dgl. Rohr mit nach den Seiten zunehmender Wandstaerke
摘要
申请公布号	DE546098(C)	申请公布日期	1932.03.09
申请号	DE1929B143404D	申请日期	1929.05.02
申请人	C. BARESEL A. G.;WAYSS & FREYTAG A. G.	发明人
分类号	F16L1/028	主分类号	F16L1/028
代理机构		代理人
主权项
地址

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