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发明名称
VERFAHREN ZUR ERMITTLUNG VON KURZSCHLUSSWETTERSTROEMEN AN SAUGEND ARBEITENDEN HAUPTGRUBENVENTILATOREN
摘要
申请公布号
DD285695(A7)
申请公布日期
1991.01.03
申请号
DD19880319651
申请日期
1988.09.09
申请人
SDAG WISMUT,DD
发明人
SIEBERT,FRANK,DD;HAMBECK,LUDWIG,DD;SCHLOTT,GUENTER,DD
分类号
E21F1/00;(IPC1-7):E21F1/00
主分类号
E21F1/00
代理机构
代理人
主权项
地址
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