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 trade the following pattern of a liquid flowmeter submitted by Micrelec Ltd
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Micrelec Ltd.
London National Weights and Measures Laboratory
1985
Liquid feeders.
Weights and measures