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 pattern of liquid measuring equipment as described herein ... submitted by: Proeda AG.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Proeda AG.
Teddington : National Weights and Measures Laboratory,
1988.
Weights and measures
Liquid feeders.