"Yield" sign invented by Tulsa police officer in 1950
A 1952 issue of Popular Mechanics called Capt. Clinton Riggs' invention a "shining example of American know-how and inventiveness."
Source: tulsaworld.com
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Now the Ulysses hotel, it was once The Latrobe
A corner mansion, located at Charles and Read Streets in Baltimore's Mt. Vernon neighborhood, was once home to the Latrobe family. Now it serves as a hotel.
Source: baltimoresun.com
The yield sign was an Oklahoma invention
Scott Meacham In a list of mid-century inventions, I put the traffic yield sign near the top. When you think about it, the yield sign is pure genius. It is all about keeping things moving until the precise moment they need to stop. The story of how the yield sign came about is a classic parable of innovation, and it happened right here in Oklahoma thanks to Clinton Riggs. Riggs was a state patrolman and police officer from Tulsa. He reportedly had his idea for the yield sign in the late thirties when he attended Chicago’s Northwestern Traffic Institute. As part of the curriculum, he and oth...
Source: oklahoman.com