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发明名称
Piston construction
摘要
申请公布号
US1751445(A)
申请公布日期
1930.03.18
申请号
US19270179994
申请日期
1927.03.31
申请人
THE PROSPERITY COMPANY INC.
发明人
DAVIS ERNEST
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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