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
Patent Office at State House, 66-71 High Holborn, London WC1R
4TP (Tel 071-831 2525) or Science Reference and Information Service at 25
Southampton Buildings, London WC2A 1AY (Tel 071-323 7919).
More from Âé¶¹´«Ã½
Explore the latest news, articles and features

Health
Woman with Alzheimer's starts conversing again after taking psilocybin
News

Life
New-to-science spider builds trap that flings ants into the air
News

Health
How menopause radically changes the brain – and what happens after
Features

Mind
‘Fusogenic’ neurosurgery let paralysed pigs walk again – are we next?
Comment
Popular articles
Trending Âé¶¹´«Ã½ articles
1
A quantum state that lasts forever may finally be within our grasp
2
New-to-science spider builds trap that flings ants into the air
3
How menopause radically changes the brain – and what happens after
4
Fully autonomous drones have killed human soldiers for the first time
5
‘Fusogenic’ neurosurgery let paralysed pigs walk again – are we next?
6
The surprising ways your brain changes from your 20s to your 40s
7
Faecal transplant makes the brains of old mice act young again
8
The secrets to keeping your brain sharp in old age
9
Has the answer to life's origins been hiding in our cells all along?
10
Remarkable fossils rewrite the story of how animals conquered the land