发明名称 |
Educational aid |
摘要 |
|
申请公布号 |
GB9623094(D0) |
申请公布日期 |
1997.01.08 |
申请号 |
GB19960023094 |
申请日期 |
1996.11.05 |
申请人 |
HAMER, CHRIS |
发明人 |
|
分类号 |
|
主分类号 |
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代理机构 |
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代理人 |
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主权项 |
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地址 |
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