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发明名称
Piston
摘要
申请公布号
US2056079(A)
申请公布日期
1936.09.29
申请号
US19340719947
申请日期
1934.04.10
申请人
RAMSPECK GEORGE C
发明人
RAMSPECK GEORGE C.
分类号
F16J1/16
主分类号
F16J1/16
代理机构
代理人
主权项
地址
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