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发明名称
Piston ring joint miller
摘要
申请公布号
US1946881(A)
申请公布日期
1934.02.13
申请号
US19310550349
申请日期
1931.07.13
申请人
PORTER JAY E
发明人
PORTER JAY E.
分类号
B23C3/22
主分类号
B23C3/22
代理机构
代理人
主权项
地址
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