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经营范围
发明名称
Valve gear
摘要
申请公布号
US2239713(A)
申请公布日期
1941.04.29
申请号
US19360087683
申请日期
1936.06.27
申请人
HATHAWAY CHARLES E
发明人
HATHAWAY CHARLES E.
分类号
F01L31/16
主分类号
F01L31/16
代理机构
代理人
主权项
地址
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