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发明名称
Piston
摘要
申请公布号
US1769646(A)
申请公布日期
1930.07.01
申请号
US19290373886
申请日期
1929.06.26
申请人
PATCH ALLEN J
发明人
PATCH ALLEN J.
分类号
F02F3/00
主分类号
F02F3/00
代理机构
代理人
主权项
地址
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