Beckman acquired a manufacturer of direct-writing oscillographs and electroencephalographs, Offner Electronics, in 1961. Beckman’s EEG product line was sold in 1984.
“Beckman Facilities, Schiller Park, Illinois,” n.d. Beckman Historical Collection, Box 57, Folder 37. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/nz806004j.
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