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148 PATENTLISTE DER „ELEKTROTECHNISCHEN RUNDSCHAU“. No. 19 No. 682 729. Electric switch. H A, Metz, Brooklyn. 5. 7. 99. No. 682 732. Supervisory Signal for telephone Systems. F. R. Mc Berty, Downers Grove. 13. 11. 97. No. 692742. Portable electric lamp. H. E. Plass, New-York. 20. 4, 01. No. 682 796. Electromagnetieally-operated dooro' pener. J. M. G. Gould, Boston. 26. 11. 00. No. 682 818. Switch for eleetromotors. R. A- Sloanand. J. E. Barnes, Liverpool, England- 19. 6. 00. No. 682828. Electromagnetic Controlling System. E. R. Hill, Wilkinsburg. 13. 1. 00. No. 682 845. Electric cable for three-phase alter- nating currents. W. B. Esson, London, Eng land. 22. 7. 01. No. 682 898. Dynamo-electric machine. Ch. De W. W- Anderson, Chicago. 22. 10. 00. No. 682899. Accumulator-plate. H. T. d’Arnoult, Paris, Frankreich. 1. 4. 01. No. 682 942. Rotary transformer. B. G. Lamme, Pittsburg. 28. 1. 97. No. 682 943. Method of dranging frequency of alternating currents. B. G. Lamme, Pittsburg. 24. 7. 97. No. 682 949. Electric heater. J. T. Mc Elroy, Albany. 28. 11. 98. No. 682 971. Electrostatic measuring instrument. J. H. Bryson, St. Louis. 18. 3. 01. No. 682 973. System and apparatus for loading and unloading storage batteries from motor- vehicles. G. H. Condict, New-York. 19. 10. 98. No 682 974. Wireless telegraph. H. P. Davis. West Philadelphia. 8. 5. 01. No. 682978. System of electrically ligbting railway- carriages. E. Dick, Baden Oesterreich-Ungarn. 25. 2. 99. No. 682 984. Telephone toll apparatus. W. Gray, Hartford. 5. 1. 01. No. 682996. Electrode. J. K. Pumpelly, Chicago. 26. 12. 00. No. 697 697. Fan. J. J. Wood, Fort Wayne. 25. 2. 01. No 697 698. Magneto-bell ringer. E. E. Yaxley, Chicago. 6. 12. 01. No. 697 708. Lamp hood and switch. H. Etheridge, Mekeesport. 23. 7. 01. No. 697 727. Switch for electric lamps. J. F. Krayer, Philadelphia. 10. 3. 99. No. 697 733. Multiple-conductor System: A. D. Lunt, Schenectady. 27. 9. 01. No. 697 734. Safety device for circuit-closers F. Mackintosh, Schenectady. 26. 8. 01. No. 697 749 Controlling device for electric motors. W. B. Potter, Schenectady. 29. 8 98. No. 697 755. Alternating-current meter. G. Stern, Charlottenburg, Deutschland. 23. 8. 00. No. 697 756. Alternating-current meter. G. Stern, Charlottenburg, Deutschland. 23. 8. 00. No. 697 757. Globe-holder for arc lamps. G. E. Stevens, Lynn. 15. 9. 99. No. 697 767. System of electrical control. G. T. Woods & L. Woods, New-York. 18. 5. 01. No. 697 783. Dynamo-electric machine. E. J. Berg, Schenectady. 25. 8 99. No. 697 817. Device for electrically connecting rails. G. Deharde, Wiesbaden, Deutschland. 11.1.00. No. 697 826. Electrical steering apparatus for ships. B. A. Fiske, U. S. Navy. 17. 10. 00. No. 697832. Electric transmission of power. E. M. Fraser, Yonkers. 6. 11. 00. No. 697 834. Circuit-controller. J. J. Ghegan, Newark. 20. 8. 01. No. 697 847. Electric-elevator System. J. D. Jhlder, Yonkers. 21. 8. 01. No. 697 856. Contact for electrical glow-lamps. A. Lefebre, Paris, Frankreich. 11. 11. 01. No. 697 884. Trolley-pole. W. Pullman&Ch.C.Field, Sodus. 11. 10. 01. No. 697892. Trolley-wheel. W. Seilers, Haverhill. 31. 1. 62. No. 697 928. Motor Controlling apparatus. G. T. Woods & L. Woods, New-York. 3. 9. 01. No. 697 934. Railway safety-block System. G. W. Cohen, Allegheny. 8. 8. 01. No. 697 937. Trolley-wire hanger. J. L. Edwards, Aurora. 29. 1. 02. No. 695 440. Electrical switch. R. L. Border, Pitts burg. 15. 7. 01. No. 695456. Electric-railroad signaling. 0. W. Hart, Jall River. 9. 4. 01. No. 695497. Automatic cut-out. A. A Seeley & Ch. Silet, Chicago. 10. 10. 01. No. 695 506. Trolley. M. Stoll & J. W. Ruck Pittsburg. 12. 6. 01. No. 695 524. Electric generator. E. C. Woodel, Highpoint. 29. 8. 01. No. 695529. r System of electrical transmission. F. Bedell, Jthaca. 10. 7. 99.