The Black History Inventors reference includes many amazing individuals, some who have received US patents. You can search by keywords, jump directly to any page (by page number) you select, or flip through the entries by swiping your finger. Go forward or backward using the arrow keys. You can listen to black history inventors historical facts through your speaker or headphones spoken by a real person (not a computerized voice). Narration can be turned on or off.
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| 熱門國家 | 系統支援 | 版本 | 費用 | APP評分 | 上架日期 | 更新日期 |
|---|---|---|---|---|---|---|
| 未知 | Android Google Play | 1.1 App下載 | 免費 | 1970-01-01 | 2015-04-23 |
