1984 – Bellows Robotic Arm/Trunk – James Wilson (American)

  Reference:  Science News – March 26, 1988 The Muscular Machinery of Tentacles, Trunks and Tongues Scientists discover a new way for muscles to work By STEFI WEISBURD An arm without bones could not bend. A person who tried to bend such an arm would instead end up with a short, fat bulge of biceps. …