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发明名称
摘要
申请公布号	DE2050766(A1)	申请公布日期	1972.04.20
申请号	DE19702050766	申请日期	1970.10.15
申请人	SIEMENS AG	发明人
分类号	C30B13/20;C30B13/28;C30B13/30;(IPC1-7):B01J17/10	主分类号	C30B13/20
代理机构		代理人
主权项
地址

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