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经营范围
发明名称
Improvements in or relating to pistons and piston rings therefor
摘要
申请公布号
GB520348(A)
申请公布日期
1940.04.22
申请号
GB19380030200
申请日期
1938.10.19
申请人
CHARLES GUTHRIE GUTHRIE
发明人
分类号
F16J9/20
主分类号
F16J9/20
代理机构
代理人
主权项
地址
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