,申请号DE19813121244-传众专利搜索

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发明名称
摘要
申请公布号	DE3121244(C2)	申请公布日期	1983.02.24
申请号	DE19813121244	申请日期	1981.05.29
申请人	HOCHTIEF AG VORM. GEBR. HELFMANN, 4300 ESSEN, DE	发明人	STUMPP, ROLF, DIPL.-ING. ING.(GRAD.), 4300 ESSEN-WERDEN, DE
分类号	E21D9/087;E21D9/11;(IPC1-7):E21D9/08	主分类号	E21D9/087
代理机构		代理人
主权项
地址

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