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 - Beckman Positive Displacement Pump/Constant Volume Sampler ID - 3484zh19d AV - Beckman Historical Collection, Box 84 VL - Beckman Historical Collection, Box 84 AN - Beckman Historical Collection, Box 84 UR - https://digital.sciencehistory.org/works/3484zh19d KW - Pumping machinery KW - Scientific apparatus and instruments KW - Constant volume sampling KW - Automobiles--Testing KW - Beckman Instruments, Inc. LA - ER -