CN209912259U - 一种便携式英语单词教学板 - Google Patents
一种便携式英语单词教学板 Download PDFInfo
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111824571A (zh) * | 2020-07-15 | 2020-10-27 | 广东海洋大学 | 一种方便拿取的视障儿童盲文学习卡片存放装置 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111824571A (zh) * | 2020-07-15 | 2020-10-27 | 广东海洋大学 | 一种方便拿取的视障儿童盲文学习卡片存放装置 |
| CN111824571B (zh) * | 2020-07-15 | 2024-03-01 | 广东海洋大学 | 一种方便拿取的视障儿童盲文学习卡片存放装置 |
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| GR01 | Patent grant | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Harbin Yuming culture media Co.,Ltd. Assignor: HEILONGJIANG University OF TECHNOLOGY Contract record no.: X2023230000019 Denomination of utility model: A Portable English Word Teaching Board Granted publication date: 20200107 License type: Exclusive License Record date: 20230403 |
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Assignee: Harbin Yuming culture media Co.,Ltd. Assignor: HEILONGJIANG University OF TECHNOLOGY Contract record no.: X2023230000019 Date of cancellation: 20230523 |
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| EC01 | Cancellation of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Harbin Yuming culture media Co.,Ltd. Assignor: HEILONGJIANG University OF TECHNOLOGY Contract record no.: X2023230000043 Denomination of utility model: A Portable English Word Teaching Board Granted publication date: 20200107 License type: Exclusive License Record date: 20230801 |
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