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发明名称
摘要
申请公布号	DE3720643(C2)	申请公布日期	1990.12.20
申请号	DE19873720643	申请日期	1987.06.23
申请人	H. LAFRENTZ GMBH & CO, 2000 HAMBURG, DE	发明人	MICHALSKI, CHRISTIAN, DR., 2084 RELLINGEN, DE
分类号	E01C11/12;E01D19/06	主分类号	E01C11/12
代理机构		代理人
主权项
地址

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