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发明名称
PISTON RINGS,AND METHOD AND APPARATUS FOR THEIR MANUFACTURE
摘要
申请公布号
ZA8102658(B)
申请公布日期
1982.12.29
申请号
ZA19810002658
申请日期
1981.04.23
申请人
ASS ENG ITALIA
发明人
RAGGI LODOVICO
分类号
F16J
主分类号
F16J
代理机构
代理人
主权项
地址
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