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发明名称
Housed spark-over gap
摘要
申请公布号
US2642549(A)
申请公布日期
1953.06.16
申请号
US19520281714
申请日期
1952.04.11
申请人
MCGRAW ELECTRIC COMPANY
发明人
PUMMER LEO
分类号
H01T4/10
主分类号
H01T4/10
代理机构
代理人
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