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经营范围
发明名称
Compressible piston ring
摘要
申请公布号
US2827349(A)
申请公布日期
1958.03.18
申请号
US19540465896
申请日期
1954.11.01
申请人
SEALED POWER CORPORATION
发明人
BURNS LEO C.
分类号
F16J9/06
主分类号
F16J9/06
代理机构
代理人
主权项
地址
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