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| Daimler Puch Co | Austria
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| ROFA | Austria
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| Metal Leve | Brazil
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| Imperial Oil (Esso) | Canada
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| Imperial Oil (Esso) | Canada
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| Imperial Oil (Esso) | Canada
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| DICERSA (Spain) | Cuba
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| KOVO | Czech Republic
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| KOVO | Czech Republic
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| I.F.P. | France
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| Greek Air Force | Greece
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| T.E.I. Athens | Greece
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| T.E.I. Kovala | Greece
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| T.E.I. Kozani | Greece
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| T.E.I. Patras | Greece
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| Bharat Heavy Electricals Co | India
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| Defence R & D Establishment, Kanpur | India
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| Indian Institute of Technology, Delhi | India
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| Steel Authority of India | India
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| Tata Ltd | India
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| University of Baghdad | Iraq
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| Nippon Grease | Japan
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| Nippon Oil | Japan
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| Showa Petroleum (Shell) | Japan
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| Government of the Republic of Korea | Korea
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| K.P.Q.I. | Korea
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| Korea Machinery Ltd | Korea
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| Korea Research Insitute of Chemical Technology | Korea
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| Kuwait University | Kuwait
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| Ibadan Polytechnic | Nigeria
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| University of Nigeria, Nsukka | Nigeria
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| Minho University | Portugal
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| Qatar Ministry of Electricity & Water | Qatar
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| Qatar University | Qatar
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| Technology Inventions | Russia
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| CEPSA | Spain
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| Mining Institute | Spain
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| Scientific Research Centre, Damascus | Syria
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| Chinese Petroleum Company | Taiwan
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| Admiralty Materials Laboratory, Poole | UK
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| Brunel University, London | UK
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| Castrol Ltd, Pangbourne | UK
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| Ethyl Petroleum Additives Ltd., Bracknell | UK
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| Liverpool Polytechnic (John Moores) | UK
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| National Gas Turbine Establishment, Pyestock | UK
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| National Coal Board | UK
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| National Engineering Laboratory, East Kilbride | UK
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| Prices Chemicals | UK
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| Rolls Royce Ltd | UK
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| Shell Research Ltd, Thornton | UK
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| Ultraglide, Angus | UK
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| Hooker Chemicals Corporation | USA
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| Roxana Corporation | USA
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