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发明名称
Piston packing rings
摘要
申请公布号
GB455943(A)
申请公布日期
1936.10.30
申请号
GB19350025543
申请日期
1935.09.14
申请人
HAY SMITH
发明人
分类号
F16J9/08
主分类号
F16J9/08
代理机构
代理人
主权项
地址
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