ˈɜːl ˈeɪ. tˈɑːmpsən, ɐmˈɛɹɪkən ˌɛndʒɪnˈɪɹ ænd ɪnvˈɛntɚ, kɹˈɛdɪɾᵻd wɪððɪ ɪnvˈɛnʃən ʌvðə sˈɪŋkɹoʊmʃ mˈænjuːəl tɹænsmˈɪʃən ɪn nˈaɪntiːnhˈʌndɹɪd ˈeɪtiːn.
Earl A. Thompson, American engineer and inventor, credited with the invention of the  synchromesh manual transmission in 1918.