Certificate of EC type-approval of a measuring instrument number: UK 2389 issued by the Secretary of State for Trade and Industry ... to Herbert & Sons Ltd in respect of a class III non-automatic weighing machine designated the Siemens Nixdorf Beetle 3/50, Beetle/60 or Beetle 3/60 EPOS system.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Herbert & Sons Ltd.
Teddington : National Weights and Measures Laboratory,
1995.
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