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经营范围
发明名称
Steinkohlenstaub fuer Giessereizwecke
摘要
申请公布号
DE1758921(A1)
申请公布日期
1971.03.04
申请号
DE19681758921
申请日期
1968.09.04
申请人
RUEHL,GERHARD,PROF.DR.-ING.HABIL.
发明人
RUEHL,GERHARD,PROF.DR.-ING.HABIL.
分类号
B22C3/00
主分类号
B22C3/00
代理机构
代理人
主权项
地址
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