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发明名称
Spark plug
摘要
申请公布号
US2597978(A)
申请公布日期
1952.05.27
申请号
US19480039115
申请日期
1948.07.16
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
DORAN ROBERT F.
分类号
H01T13/34
主分类号
H01T13/34
代理机构
代理人
主权项
地址
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