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发明名称
Piston ring construction
摘要
申请公布号
US2664328(A)
申请公布日期
1953.12.29
申请号
US19520291869
申请日期
1952.06.05
申请人
MUSKEGON PISTON RING COMPANY
发明人
HAMM DOUGLAS W.
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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