TK - Electrical and Nuclear Engineering 612
TS - Manufactures 238
TA - General and Civil Engineering 235
TJ - Mechanical Engineering and Machinery 224
TL - Motor Vehicles and Aeronautics 134
T - General Technology 128
TP - Chemical Technology 86
TH - Building Construction 37
TN - Mining Engineering and Metallurgy 29
TR - Photography 28
TX - Home Economics 15
TT - Arts and Crafts 14
TD - Environmental Technology 12
TC - Hydraulic and Ocean Engineering 3
TE - Highway Engineering 2
TF - Railroad Engineering and Operation 1