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发明名称
Improvement in moulds for the manufacture of articles in silica glass or any other vitreous material which is fusible with difficulty
摘要
申请公布号
GB339197(A)
申请公布日期
1930.12.04
申请号
GB19300005010
申请日期
1930.02.14
申请人
QUARTZ & SILICE
发明人
分类号
C03B9/34;C03B19/00
主分类号
C03B9/34
代理机构
代理人
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地址
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