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发明名称
Piston
摘要
申请公布号
US2304650(A)
申请公布日期
1942.12.08
申请号
US19400349199
申请日期
1940.08.01
申请人
PARDEE HARVEY S
发明人
PARDEE HARVEY S.
分类号
F16J1/09
主分类号
F16J1/09
代理机构
代理人
主权项
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