Tuesday 14th November 1922
Earl A Thompson was issued a patent for his ‘Automatic Fear Shifting Mechanism for Sliding Gear Transmission’ later known as ‘Synchro-Mesh’ for trademark purposes.




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Earl A Thompson was issued a patent for his ‘Automatic Fear Shifting Mechanism for Sliding Gear Transmission’ later known as ‘Synchro-Mesh’ for trademark purposes.
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