Instrumentos eléctricos de medida. Registradores X-Y.
ELECTRICAL MEASURING INSTRUMENTS. X-Y RECORDERS.
APPAREILS ÉLECTRIQUES DE MESURE. ENREGISTREURS X-Y.
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17.220.20 / Measurement of electrical and magnetic quantities
CTN 82/SC 4 - Electrical metrology
EN 61028:1993 (Identical)
IEC 1028:1991 (Identical)
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