Certificate pursuant to section 12 of the Weights and Measures Act 1963 ... the Secretary of State for Trade and Industry hereby certifies as suitable for use for trade the pattern of a self-indicating, price computing counter machine as described herein submitted by W & T Avery Ltd
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
W & T Avery Ltd.
London National Weights and Measures Laboratory
1985
Weighing-machines