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发明名称
摘要
申请公布号	DE2207834(C3)	申请公布日期	1979.01.18
申请号	DE19722207834	申请日期	1972.02.19
申请人	LECHTENBOEHMER, HANS, 4130 MOERS	发明人	LECHTENBOEHMER, HANS, 4130 MOERS
分类号	E01F7/02;E04H17/16;(IPC1-7):E04H17/14;E01F7/00	主分类号	E01F7/02
代理机构		代理人
主权项
地址

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