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Power Supply for an Intrinsically Safe Circuit.
Cawley JC; Dimartino MD; Fisher TJ; King RL
U S Patent 4,438,473 1984 Mar; :
U.S. Patent No. 4,438,473 March 20, 1984
Page last reviewed: October 29, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division