Insanely great hack, not surprising it came from a Bell Labs specialist in manufacturing. For easier search, from the video: U.S.Patent 2,402,463 , Miles V. Su

Insanely great hack, not surprising it came from a Bell Labs specialist in manufacturing. For easier search, from the video: U.S.Patent 2,402,463 , Miles V. Sullivan (P.S. reminded me of Claude Shannon, also from Bell Labs and dabbling in toys ... https://www.google.com/search?q=claude+shannon+toy https://www.google.com/search?q=claude+shannon+toy )