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Department providing services in the field "time and frequency"
|1013 - Department of primary metrology of RF electrical quantities||Regional Inspectorate Praha|
|1051 - Department of mechanical testing machines||Regional Inspectorate Praha|
|2051 - Department of weights and measures||Regional Inspectorate České Budějovice|
|6011 - Department of primary metrology of electrical quantities||Regional Inspectorate Brno|