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经营范围
发明名称
PISTON RING
摘要
申请公布号
CA510538(A)
申请公布日期
1955.03.01
申请号
CAD510538
申请日期
申请人
PERFECT CIRCLE CORPORATION
发明人
JOHN F. SHIRK
分类号
主分类号
代理机构
代理人
主权项
地址
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