5 DECEMBER 1958, Page 25

VACUUM FLASKS

SIR,--As manufacturers of vacuum flasks marketed under our own brand, we cannot agree with Mr. Adrian's conclusions in the matter of colloquial use of .a brand name. In the case to which he refers, i.e. a customer asking for a 'thermos' but meaning a vacuum flask, the customer is presumably not asking for a 'Thermos' brand product, Should he eventually select a flask of another make and find it unsatisfac- tory, he surely will not blame the Thermos Company. We, in common with most manufacturers of vacuum flasks, clearly mark our products, and members of the public can hardly be unaware of the brand of the vacuum flask purchased.--Yours faithfully,

L. LESLIE-SMITH Managing Director Vacco Ltd., Grosvenor Gardens House, Grosvenor Gardens, SW!