“For the first 90 years that patents were granted in the USA, applications were required to be accompanied by a working model – to prove that the idea works and rule out “the perpetual motion cranks”” https://t.co/VCxTOMXbP6 https://t.co/IE2erGI8Tp

“For the first 90 years that patents were granted in the USA, applications were required to be accompanied by a working model – to prove that the idea works and rule out “the perpetual motion cranks”” https://t.co/VCxTOMXbP6 https://t.co/IE2erGI8Tp

— Warren Myers 🐧🐿 (@warrenmyers)
Jul 27, 2022

from Twitter https://twitter.com/warrenmyers

July 27, 2022 at 10:33AM
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