Industrial Instruments Model RD-B103 Solu Bridge
- Circa 1965
A Solu bridge determines the dissolved solids in water by measuring its conductivity.
Though a manufacturer's name is not apparent, this unit was probably part of the Industrial Instruments product line; U.S. patent 2263932 was assigned to the company in 1941.
In 1965, Beckman Instruments acquired Industrial Instruments, Inc. The Cedar Grove, New Jersey-based company manufactured solution conductivity analyzers and other industrial instruments. The photograph probably dates to the time of the acquisition.
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Cite as
“Industrial Instruments Model RD-B103 Solu Bridge,” circa 1965. Beckman Historical Collection, Box 79. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/df65v794n.
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