Bachelor of Science, Calcutta University, India, 1954. Master Engineering, Technology University, Berlin, 1966.
Teacher, Calcutta schools, 1955-1956;
trainee, Verolme United Shipyard, Rotterdam, The Netherlands, 1957-1958;
product development engineer, Mannesmann Tubular Works, Duesseldorf, Germany, 1966-1974;
department chief, Mannesmann Tubular Works, Duesseldorf, Germany, 1975-1994;
consultant, Tubular Structures, Ratingen, Germany, since 1995. Member European Convention for Constrnl. Steelwork, Brussels, since 1974.
Secretary International Institute Welding, 1972-1980. Member Committee International for Development and Study of Tubular Construction, Geneva, 1972-1983, chairman technical commission, 1984-1994.
Married Helma Graewin, June 9, 1967.