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DIN IEC 60444-1:1993-01

Отменен
Measurement of quartz crystal unit parameters by zero phase technique in a <pi>-network; part 1: basic method for the measurement of resonance frequency and resonance resistance of quartz crystal units by zero phase technique in a <pi>-network; identical with IEC 60444-1:1986
DIN IEC 60444-1:1993-01
Отменен