PHYSICS-ENERGY

0175  FLYWHEEL UNIT 0176  FRICTION CALORIMETER UNIT 0177  HEAD OF WATER UNIT 0178  HANDWHEEL DRIVING UNIT 0179  LARGE MOTOR/GENERATOR 0180  LAMP UNIT, TRIPLE 0181  LINE SHAFT UNIT 0182  SMALL MOTOR/GENERATOR 0183  SWITCH UNIT 0184  SPRING UNIT 0185  STORAGE BATTERY UNIT 0186  TURBINE/PUMP UNIT 0187  DEMONSTRATION GAS ENGINE 4 STROKE 0188  DEMONSTRATION GAS ENGINE 2 STROKE 0189  STEAM ENGINE SECTIONAL DEMONSTATION MODEL 0190  STEAM ENGINE FACTORY MODEL 0191  STEAM ENGINE (SMALL)