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 - Coulter STKS Hematology Sample Testing System ID - 12579s43r AV - Beckman Historical Collection, Box 59, Folder 8 VL - Beckman Historical Collection, Box 59, Folder 8 AN - Beckman Historical Collection, Box 59, Folder 8 UR - https://digital.sciencehistory.org/works/12579s43r AB - A blood cell counter system on display at what is likely a trade show. This technology is based on the Coulter principle and the the Coulter Counter, which quantifies and sizes particles suspended in a fluid, like blood cells, bacteria, and a wide variety of other substances. The Coulter principle was discovered by Wallace H Coulter in the late 1940s and patented in 1953. The Coulter counter was manufactured by Coulter Corporation until 1997, when the company was acquired by Beckman Instruments and became known as Beckman Coulter, Inc. KW - Medical laboratory technology KW - Scientific apparatus and instruments KW - Blood cell count--Equipment and supplies KW - Coulter principle KW - Medical electronics KW - Beckman Instruments, Inc. LA - ER -