15 Vintage Inventions That Never Quite Caught On
If you’re someone who enjoys poring over spreadsheets of historical data from the US Patent Office, (who doesn’t?), one truth becomes clear very quickly: there are a LOT of patent applications every year. In 2015, the most recent year I have data for, over 288,00 patents were applied for. Wow! But notice I said “patent … Continue reading 15 Vintage Inventions That Never Quite Caught On
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