Abstract
These abstracts of British Patent Specifications arc taken, by permission, from the officially prepared abridgments classified in Groups. Sets of Group abridgments can be obtained from the Patent Office, 25 Southampton Buildings, W.C.2, sheet by sheet as issued, at a subscription of 10s. per Group. Copies of the full specifications arc obtainable at the same address, price 1s. each
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1. The attachment of slow electrons in oxygen;Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences;1957-07-16