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发明名称
Piston packing
摘要
申请公布号
US2431957(A)
申请公布日期
1947.12.02
申请号
US19440519486
申请日期
1944.01.24
申请人
NOVISS WILLIAM N
发明人
NOVISS WILLIAM N.
分类号
F16J9/20
主分类号
F16J9/20
代理机构
代理人
主权项
地址
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