wˈɜːkɪŋ æz ɐn ˌɛndʒɪnˈɪɹ ænd ɐn ɪnvˈɛntɚ fɔːɹ sˈɛvɹəl jˈɪɹz, hiː ɹˈɛdʒɪstɚd æt lˈiːst sˈɛvən jˌuːˈɛs pˈæʔn̩ts bᵻtwˌiːn nˈaɪntiːnhˈʌndɹɪd fˈɪfti ˈeɪt ænd nˈaɪntiːnhˈʌndɹɪd sˈɪksti θɹˈiː.
Working as an engineer and an inventor for several years, he registered at least seven US patents between 1958 and 1963.