发明名称 |
Teaching aid |
摘要 |
|
申请公布号 |
GB9401212(D0) |
申请公布日期 |
1994.03.16 |
申请号 |
GB19940001212 |
申请日期 |
1994.01.22 |
申请人 |
POPE GREGORY P. |
发明人 |
|
分类号 |
|
主分类号 |
|
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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