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经营范围
发明名称
Piston ring compressor
摘要
申请公布号
US2553663(A)
申请公布日期
1951.05.22
申请号
US19480008699
申请日期
1948.02.16
申请人
HERMAN MARTIN
发明人
MARTIN HERMAN
分类号
B25B27/12
主分类号
B25B27/12
代理机构
代理人
主权项
地址
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