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发明名称
Spark plug
摘要
申请公布号
US2226415(A)
申请公布日期
1940.12.24
申请号
US19400322276
申请日期
1940.03.05
申请人
FRED KAPP
发明人
KAPP FRED
分类号
H01T13/32
主分类号
H01T13/32
代理机构
代理人
主权项
地址
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