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发明名称
Piston packing ring
摘要
申请公布号
US2465896(A)
申请公布日期
1949.03.29
申请号
US19460680039
申请日期
1946.06.28
申请人
RAMSEY CORPORATION
发明人
MARIEN CHARLES A.
分类号
F16J9/22
主分类号
F16J9/22
代理机构
代理人
主权项
地址
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