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发明名称
Piston and method of forming thereof
摘要
申请公布号
US1788359(A)
申请公布日期
1931.01.06
申请号
US19260091149
申请日期
1926.02.27
申请人
ROSS OSCAR A
发明人
ROSS OSCAR A.
分类号
F02F3/04
主分类号
F02F3/04
代理机构
代理人
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地址
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