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 an automatic weighing machine for dispensing predetermined loads of powdered materials : submitted by Webster Griffin Limited.
Great Britain.Department of Trade and Industry.
National Weights and Measures Laboratory.
Webster Griffin Limited.
Teddington : National Weights and Measures Laboratory,
1988.
Weights and measures
Weighing-machines.