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经营范围
发明名称
Improved spark plug
摘要
申请公布号
GB546370(A)
申请公布日期
1942.07.09
申请号
GB19410007919
申请日期
1941.06.24
申请人
GENERAL MOTORS CORPORATION
发明人
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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