DIN 43751-4:1990-06 Measurement and control; digital measuring instruments; instruments for measuring time reference quantities; definitions, tests and data sheet details / Note: Applies in conjunction with DIN 43751-1 (1987-05).
1990DIN 43751-4:1990-06 Measurement and control; digital measuring instruments; instruments for measuring time reference quantities; definitions, tests and data sheet details / Note: Applies in conjunction with DIN 43751-1 (1987-05).
1990DIN 43751-4:1990 Measurement and control; digital measuring instruments; instruments for measuring time reference quantities; definitions, tests and data sheet details