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发明名称
Improvements in and relating to valve seats for internal combustion engines
摘要
申请公布号
GB625394(A)
申请公布日期
1949.06.27
申请号
GB19470020426
申请日期
1947.07.29
申请人
MALLORY METALLURGICAL PRODUCTS LIMITED
发明人
分类号
F01L3/22
主分类号
F01L3/22
代理机构
代理人
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地址
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