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发明名称
Improvements in or relating to electric insulators
摘要
申请公布号
GB319317(A)
申请公布日期
1930.05.08
申请号
GB19290021744
申请日期
1929.07.15
申请人
STEATIT-MAGNESIA AKTIENGESELLSCHAFT
发明人
分类号
H01B17/30
主分类号
H01B17/30
代理机构
代理人
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