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IEC

PDF Standards IEC 60349-1 Ed. 2.0 b:2010

Electric traction – Rotating electrical machines for rail and road vehicles – Part 1: Machines other than electronic converter-fed alternating current motors
standard by International Electrotechnical Commission, 10/13/2010

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IEC

PDF Standards IEC 61094-3 Ed. 2.0 b:2016

Electroacoustics – Measurement microphones – Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique
standard by International Electrotechnical Commission, 06/14/2016

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