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经营范围
发明名称
Procédé de fabrication de plaques minces, glacées sur les deux faces, en matière quartzeuse (quartz fondu) et en verre de quartz
摘要
申请公布号
FR904468(A)
申请公布日期
1945.11.07
申请号
FRD904468
申请日期
1944.05.19
申请人
BERLINER QUARZ-SCHMELZE GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
发明人
分类号
C03B13/04;C03B13/16;C03B17/06;C03B23/203
主分类号
C03B13/04
代理机构
代理人
主权项
地址
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