Tragwerk ueber zwei oder mehr Felder,申请号DE1957D025693-传众专利搜索

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发明名称	Tragwerk ueber zwei oder mehr Felder
摘要
申请公布号	DE1098024(B)	申请公布日期	1961.01.26
申请号	DE1957D025693	申请日期	1957.05.28
申请人	JOHANNES DOERNEN	发明人	HOFFMANN DIPL.-ING. ERICH;DOERNEN DR.-ING. E.H. DR.-ING. ALBERT
分类号	E01D1/00	主分类号	E01D1/00
代理机构		代理人
主权项
地址

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