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 Model 25 Spectrophotometer and Recorder ID - 3t945r07k DA - 1970/// YR - 1970 AV - Beckman Historical Collection, Box 84 VL - Beckman Historical Collection, Box 84 AN - Beckman Historical Collection, Box 84 UR - https://digital.sciencehistory.org/works/3t945r07k AB - Beckman's foray into ultraviolet spectroscopy began in 1940, when the company (then called National Technical Laboratories) produced the DU prototype. The double -beam Model 25 was introduced in the early 1970s. KW - Ultraviolet spectroscopy KW - Scientific apparatus and instruments KW - Spectrophotometer KW - Beckman Instruments, Inc. LA - ER -