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经营范围
发明名称
Piston for internal-combustion engines
摘要
申请公布号
US2407440(A)
申请公布日期
1946.09.10
申请号
US19440517447
申请日期
1944.01.07
申请人
WALTER OSBORNE
发明人
OSBORNE WALTER
分类号
F16J1/08;F16J9/00
主分类号
F16J1/08
代理机构
代理人
主权项
地址
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