Certificate pursuant to section 12 of the Weights and Measures Act 1985 ... the Secretary of State [for Trade and Industry] hereby certifies as suitable for use for trade the following pattern of a liquid flowmeter as described herein ... submitted by: Dresser UK Limited.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Dresser UK Limited.
Teddington : National Weights and Measures Laboratory,
1987.
Weights and measures
Liquid feeders.