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经营范围
发明名称
Insulators for thermal and electrical purposes
摘要
申请公布号
GB376709(A)
申请公布日期
1932.07.14
申请号
GB19310000635
申请日期
1931.01.07
申请人
HERMANN BECKMANN
发明人
分类号
H01B3/28
主分类号
H01B3/28
代理机构
代理人
主权项
地址
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