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发明名称
IMPROVEMENTS IN MATERIALS
摘要
申请公布号
GB8912637(D0)
申请公布日期
1989.07.19
申请号
GB19890012637
申请日期
1989.06.02
申请人
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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