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1940s (9)
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Instructions

1957

I 104-57
I 104-57
According to the calibration of plane-parallel glass plates
I 197-57
I 197-57
According to the verification of the magnetic thickness gauges MT-2 and MT-DA3
I 204-57
I 204-57
According to the calibration of the decimeter range echo resonators
I 234-57
I 234-57
According to the calibration of pendulum pile drivers for determining the impact strength of materials
I 242-57
I 242-57
According to the calibration of tachometers, speedometers and revolution counters
I 256-57
I 256-57
According to the calibration of glass measuring burettes of chemical non-automatic gas analyzers
I 29-57
I 29-57
According to the calibration of syrup dispensers
I 83-57
I 83-57
According to calibration of measuring metal lines
Instruction 136-57
Instruction 136-57
Instructions for verification of micrometric calipers
Instruction 137-57
Instruction 137-57
Instructions for verification of micrometric depth gauges
Instruction 50-57
Instruction 50-57
Instructions for checking lever scales

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