- #OTDIH 1902: A #patent for a submarine was granted by John Holland, who developed the 1st submarine to be formally… https://t.co/qUzGIhlz4b — 9 hours 5 min ago
- RT @: — 1 day 9 hours ago
- 🍞 While General Electric built the first toaster in 1909, Minnesota mechanic Charles Strite received the first… https://t.co/4OkJVMlVUo — 2 days 8 hours ago
- RT @: — 3 days 5 hours ago
- Watch Celia's story to find out how weakened #patent laws could hurt small inventors and start-ups. #PatentsMatter… https://t.co/YX7uXBtv0K — 3 days 7 hours ago
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