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45 FR 7907, Feb. 5, 1980, unless otherwise noted.
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Nomenclature changes to part 870 appear at 73 FR 35341, June 23, 2008.
(a) Identification. A vectorcardiograph is a device used to process the electrical signal transmitted through electrocardiograph electrodes and to produce a visual display of the magnitude and direction of the electrical signal produced by the heart.
(b) Classification. Class II (performance standards).