/ / / / / I / 10000607
Chicago : American technical society
1918.
7 v.,11-503p.,illu
Mechanical engineering.
Electric engineering.
Derr, Louis,1868- [from old catalog]. ed.
American Technical Society.
Steam boilers and pumps; steam, stationary, locomotive, and marine engines; steam turbines; gas and oil engines; gas-producers; compressed air; refrigeration; elevators; heating and ventilation; management of dynamo-electric machinery; power station; etc.