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经营范围
发明名称
HARD CARBON COATING
摘要
申请公布号
GB8718434(D0)
申请公布日期
1987.09.09
申请号
GB19870018434
申请日期
1987.08.04
申请人
ION TECH LTD
发明人
分类号
A61F2/30
主分类号
A61F2/30
代理机构
代理人
主权项
地址
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