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经营范围
发明名称
Vitreous composition
摘要
申请公布号
US2413549(A)
申请公布日期
1946.12.31
申请号
US19440555597
申请日期
1944.09.23
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
DEYRUP ALDEN J.
分类号
C03C3/112;H01B3/08
主分类号
C03C3/112
代理机构
代理人
主权项
地址
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