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发明名称
JOINT
摘要
申请公布号
GB8709585(D0)
申请公布日期
1987.05.28
申请号
GB19870009585
申请日期
1987.04.23
申请人
LISTER, G
发明人
分类号
G09B23/28
主分类号
G09B23/28
代理机构
代理人
主权项
地址
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