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发明名称
Improvements in and relating to piston engines with self-lubricating packing rings
摘要
申请公布号
GB437832(A)
申请公布日期
1935.11.06
申请号
GB19340018286
申请日期
1934.06.20
申请人
LIMITED COMPANY
发明人
分类号
F16J9/28
主分类号
F16J9/28
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代理人
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