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经营范围
发明名称
Piston ring
摘要
申请公布号
US2044274(A)
申请公布日期
1936.06.16
申请号
US19340728569
申请日期
1934.06.01
申请人
THE Z-FLEX PISTON RING CORPORATION
发明人
ZAHODIAKIN VICTOR F.
分类号
F16J9/20
主分类号
F16J9/20
代理机构
代理人
主权项
地址
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