First Traffic Cone
thingiverse
I referenced Scanlon's Traffic Cone, a pioneering invention that revolutionized road safety in 1941 and was patented two years later as a game-changer. You can access the patent document by clicking on this link: https://patentimages.storage.googleapis.com/f7/c8/e3/be592aca145cd2/US2333273.pdf
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