"The Comet Trading Company's first broom was the Comet 140, this being the number of models that Keitch and Horton had tested prior to its release."
-- Quidditch Through the Ages (QA9)
Before their invention of the Horton-Keitch Braking Charm, Quidditch matches must have been quite fun to watch if the players weren't able to stop themselves in time!
Lexicon list of Broom Manufacturers
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