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Copies of patents, which contain fuller details and the addresses of
inventors, are available from science reference libraries around Britain.
For details of free public access and purchase price, contact the London
Patant Office at State HOuse, 66-71 High Holburn, London, WC₁R
4TP (Tel 071-831-2525) or Science Reference and Information Service at 25
Southampton Buildings, London, WC₂A 1AY (Tel 071-323-7919).