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发明名称
Composite sealing ring
摘要
申请公布号
US2420047(A)
申请公布日期
1947.05.06
申请号
US19450591672
申请日期
1945.05.03
申请人
RAMSEY ACCESSORIES MANUFACTURING CORPORATION
发明人
MARIEN MELVIN W.
分类号
F16J15/38
主分类号
F16J15/38
代理机构
代理人
主权项
地址
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