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21. Study of a series evaporator designed for maximum efficiency Study of a series evaporator designed for maximum efficiency Mayer, L. G. C. 1901

22. Efficiency test of a 20 H.P. single phase induction motor Efficiency test of a 20 H.P. single phase induction motor Tanner, A. R.; Eaton, Wyman 1901

23. Investigation of the factors effecting the operating efficiency of the Lafayette Street Railway System Investigation of the factors effecting the operating efficiency of the Lafayette Street Railway System Ridgely, Holland Persinger; Fansler, Percival E. 1901

24. Efficiency test of muncie electric light plant Efficiency test of muncie electric light plant Haymond, W. O.; Gough, Cale R. 1901

25. Life and efficiency of commercial brands of enclosed arc carbons Life and efficiency of commercial brands of enclosed arc carbons Winter, Paul Gustav; Hardwicke, George Francis 1901

26. Efficiency of carbon, graphite and metallic brushes and commutator compounds Efficiency of carbon, graphite and metallic brushes and commutator compounds Kalinowski, Alexander John 1901

27. Tests on a compressed air motor to determine the increased efficiency of using hot air over cold air Tests on a compressed air motor to determine the increased efficiency of using hot air over cold air Allen, Edwin Madison 1899

28. Efficiency and regulation test of a Westinghouse rotary converter Efficiency and regulation test of a Westinghouse rotary converter Rolf, A. F.; Simpson, E. L. 1899

29. Efficiency and regulation test of a Westinghouse rotary converter Efficiency and regulation test of a Westinghouse rotary converter Rolf, A. F.; Simpson, E. L. 1899

30. Laboratory efficiency test of street car motors Laboratory efficiency test of street car motors Nye, William M.; Christenson, Charles H.; 1900

31. Ageing and efficiency tests of modern transformers Ageing and efficiency tests of modern transformers Thompson, Wilbur Hayes; 1900

32. Experimental study of the evaporative efficiency of the boiler of locomotive Schenectady No. 2, using Experimental study of the evaporative efficiency of the boiler of locomotive Schenectady No. 2, using crude petroleum as a fuel Anderson, Howard Lee 1902

33. Experimental study of the evaporative efficiency of the boiler of locomotive Schenectady No. 2, using Experimental study of the evaporative efficiency of the boiler of locomotive Schenectady No. 2, using crude petroleum as a fuel Leary, Fred 1902

34. Commercial efficiency test of the power station of the Union Traction Company Commercial efficiency test of the power station of the Union Traction Company Reid, Clarence Erle; Gregg, Ward Brinton 1902

35. Evaporative efficiency of the boiler of locomotive Schenectady no. 2; using crude petroleum as fuel Evaporative efficiency of the boiler of locomotive Schenectady no. 2; using crude petroleum as fuel Pickard, James Deal 1902

36. Commercial efficiency of the rolling stock and road equipment of the Union Traction Co. of Indiana Commercial efficiency of the rolling stock and road equipment of the Union Traction Co. of Indiana Peticolas, Ralph A.; Hofft, Fred B. 1902

37. Life and efficiency of commercial brands of electric enclosed arc light carbons Life and efficiency of commercial brands of electric enclosed arc light carbons Sawyer, P.B. 1902

38. Design and general solution for a multiple effect evaporator of maximum efficiency Design and general solution for a multiple effect evaporator of maximum efficiency Ducas, Charles 1902

39. Effect of changes in inside clearance upon the efficiency of locomotive Schenectady No. 1 Effect of changes in inside clearance upon the efficiency of locomotive Schenectady No. 1 Ede, Stuart Strickland Moore 1903

40. Effects of changes in the valve proportion upon the efficiency and power of locomotive Schenectady no. Effects of changes in the valve proportion upon the efficiency and power of locomotive Schenectady no. 1. Wilson, Alexander Massey 1903
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