TY - MANSCPT DB - Science History Institute DP - Science History Institute M2 - Courtesy of Science History Institute. Rights: In Copyright - Rights-holder(s) Unlocatable or Unidentifiable TI - Helipot Servo Screw Drive ID - j6731425z AU - Dietrich, T. A. DA - 1965/02// YR - 1965 AV - Beckman Historical Collection, Box 86 VL - Beckman Historical Collection, Box 86 AN - Beckman Historical Collection, Box 86 UR - https://digital.sciencehistory.org/works/j6731425z KW - Servomechanisms KW - Beckman Instruments, Inc. LA - ER -