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发明名称
Adjustable electrode spark plug
摘要
申请公布号
US2540453(A)
申请公布日期
1951.02.06
申请号
US19490094361
申请日期
1949.05.20
申请人
MCDONALD EDWARD A
发明人
MCDONALD EDWARD A.
分类号
H01T13/24
主分类号
H01T13/24
代理机构
代理人
主权项
地址
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