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发明名称
Improvements in and relating to pistons
摘要
申请公布号
GB380800(A)
申请公布日期
1932.09.19
申请号
GB19310017737
申请日期
1931.06.18
申请人
JOHN WILLIAM HOWLETT
发明人
分类号
F02F3/00
主分类号
F02F3/00
代理机构
代理人
主权项
地址
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