This internal memo contains a list of open orders for Beckman Instruments IR-2T Spectrophotometers in June of 1952. The IR-2T was discontinued due to problems that became apparent after the product was already on the market, so Beckman Instruments had to decide how to proceed with the existing open, but unfilled, orders.
The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this contract, Beckman Instruments developed a single-beam spectrophotometer based on Robert Battrain’s extant design, which in 1942 was sold as the IR-1. With the IR-4 in 1956, Beckman Instruments branched out into double-beam design and kicked off a golden age of IR spectrophotometer production that lasted until 1973.
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Cronk, F. L. “Memo from F. L. Cronk to R. Pat Connor,” June 10, 1952. Beckman Historical Collection, Box 13, Folder 21. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/t722h882h.
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