IEC: 290-1969; Evaluation of the thermal endurance of electrical insulating varnishes by the helical coil bond test
International Electrotechnical Commission
IEC: 290-1969; Evaluation of the thermal endurance of electrical insulating varnishes by the helical coil bond test - Geneve IEC 1969 - 19
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IEC: 290-1969; Evaluation of the thermal endurance of electrical insulating varnishes by the helical coil bond test - Geneve IEC 1969 - 19
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