Cutlery and Allied Trades Research Association knowledge which is available to everyone on a competitive fee paying basis, however CATRA will enter into dialogue with consumers and users of cutlery, knives and tools where their expertise may be of help, on a free of charge basis. Petersen's Bowhunting magazine uses CATRA to measure sharpness of arrowheads. CATRA manufactures a wide range of special purpose equipment including knife and cutlery testing machines and knife sharpening systems including the CATRAHONE and CATRASHARP machines Cutlery and Allied Trades Research Association Cutlery and Allied Trades Research Association (CATRA) is an internationally known research and technology organisation in Sheffield, England which
Messer Group held two third of the company shares. Around 1997 to 2004 the gas and welding related sections were bought back by the Messer Family building the current Messer Group GmbH. The company subsidiaries for Germany, UK and the US were sold to Air Liquide, including a four-year Non-compete clause for the Messer Group. After the expiration of the non-compete clause in 2008 the Messer Group GmbH is selling gases for industrial use again. Messer Tehnogas AD have production sites in seven cities in Serbia - Belgrade, Novi Sad, Bor, Niš, Pančevo, Smederevo and Kraljevo Messer Group The Messer Group GmbH