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 liquid flowmeter as described therein submitted by Ferranti PLC
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Ferranti PLC.
London National Weights and Measures Laboratory
1985
Liquid feeders.
Weights and measures