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发明名称
VERFAHREN ZUM AMORPHISIEREN VON QUARZSAND DURCH SCHMELZEN
摘要
申请公布号
DD273622(A1)
申请公布日期
1989.11.22
申请号
DD19880317428
申请日期
1988.07.01
申请人
VEB SAND- UND TONWERK WALBECK,DD
发明人
KRANZ,ERICH,DD;MUELLER,HARRY,DD
分类号
C03B5/02;C03B20/00;(IPC1-7):C03B5/02
主分类号
C03B5/02
代理机构
代理人
主权项
地址
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