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发明名称
Spark plug
摘要
申请公布号
US1912516(A)
申请公布日期
1933.06.06
申请号
US19310554085
申请日期
1931.07.30
申请人
DAVIS WILLIAM E
发明人
DAVIS WILLIAM E.
分类号
H01T13/46
主分类号
H01T13/46
代理机构
代理人
主权项
地址
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