340 THE BELL SYSTEM TECHNICAL JOURNAL, JANUARY 1957 



John M. Fraser, B.E.E., Polytechnic Institute of Brooklyn, 1945; 

 Bell Telephone Laboratories, 1934-. Prior to World War II, Mr. Fraser 

 was concerned with the evaluation of subjective factors affecting the 

 transmission performance of telephone systems. This included the de- 

 sign of equipment for simulating transmission systems in the laboratory. 

 During the war he was chiefly concerned with the design and evaluation 

 of communication sj^stems for the military. Later he was engaged in 

 transmission work on long distance carrier systems. On the trans- 

 atlantic telephone cable he was mainly concerned with the System 

 Engineering aspects of the cable system. He is a member of Sigma Xi, 

 Tau Beta Pi and Eta Kappa Nu. 



T. F. Gleichmann, B.E., Johns Hopkins Univ., 1929; Bell Telephone 

 Laboratories, 1929-. Until 1942 Mr. Gleichmann was engaged in the 

 design and development of open wire and cable carrier systems. During 

 the period of World War II he worked on the design and development of 

 radio telephone pulse communication systems for military and Bell 

 System applications. He then engaged in development work in connec- 

 tion with coaxial cable carrier systems. He was in charge of the group 

 responsible for the circuit and mechanical design of the repeater unit for 

 the transatlantic submarine telephone cable. He is a member of Tau 

 Beta Pi. 



R. G. Griffith, graduate I.E.E., London 1924. Studied general 

 engineering in Royal Naval Air Service and Communication Engineering 

 in London. INIr. Griffith left England in 1924 to join Ail-American Cables 

 Inc. (now American Radio and Cable Corporation) becoming Project 

 Engineer in 1925, supervising ac telegraph transmission superimposed 

 tests (then termed "wired wireless") on dc duplex telegraph cable be- 

 tween Balboa Canal zone and Fishermans Point, Cuba. He developed 

 and supervised the introduction of the synchronous fork cable signal 

 regenerator, which established the through cable circuits between New 

 York and Buenos Aires via the west coast cables of South America. In 

 1929 Mr. Griffith was appointed Assistant Chief Engineer of Creed and 

 Company, and in 1932 w^as placed in charge of development. In 1935 he 

 joined Cable and Wireless Limited. From 1943 to 1946 he was loaned 

 to the foreign office communication center in charge of special machine 

 cipher development. He became Chief Engineer of Cable and Wireless 

 London Communications center in 1946, and in May 1954 joined the 

 Canadian Overseas Telecommunication Corporation as Chief Engineer. 

 Mr. Griffith holds some 60 patents relating to telecommunications. 



