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PATENTLISTE DER „ELEKTROTECHNISCHEN RUNDSCHAU 15 No. 2 No. 679197. Electrically - operated gas - bum er. H. W. Webb, Columbus. 27. 4. 01. No. 13472. Muirhead. Telegraphie transmitting receiring, and translating arrangements. No. 679206. Locking-socket for incandescent electric lamps. Ch. R. Barrett and E. C. Phillips, Chicago. 13. 5. 01. No. 15957. Contal and Gasnier. Electric - motOrs. No. 15 965. Boult. Electric barometers or barometric indicators. No. 679220. Trolley. N. Dnrant, North Adams. 18. 8. 00. No. 17 289 Adams. Automatic electric switches No. 19 951. Weyl-Dla. Dry core cables and the like electric conductors. Belgien. No. 21815. Feeny. (Allgem. Elektr. Gesellschaft.) Armatures and field magnets for Dynamo- electric generators and motors. No. 157 226. Littlefield, Saint - Louis (E.-U. d’A.) 11. 6. 01. Systeme perfectionnä de telegraphe imprimant. 1901. No. 5017. Heidel. Electric batteries. No. 157231. The Linotype Co. Ld. London. 17.6.01. Perfectionnements dans les moyens electriques propres k revöler et annoncer tout contact entre deux corps conductenrs. No. 7641. Smitb. Telephone exchange Systems. No. 8395. Hughes. Telephone transmitter. No. 10 275. British Thomson - Houston Co. Ld. No. 157 232. Creplet Liege. 17. 6. 01. Moteur electrique k vitesse variable. Controlling electric motors. No. 10459. Apple. Storage batteries. No 153025. Burry, New-York. 7. 11. 00. Perfec tionnements aux telegraphes imprimeus. No. 10951. Schoenmehl. Galvanic batteries. No. 280690. 13. 4. 01.^ Chahand u. Villard. Cert- d’add. pour un interrupteur a mercure. No. 10976. Justice. Electrolytic cells. No. 11277. Boyd. Apparatus for utilizing electric lamps in the heating of plates and other No. 310062. 22. 4. 01 Couvrenx Regulateur mecanique reglaw la lumiere electrique automatiqaement. domestic Utensils, and in the hoiling of water and other liquids. No. 13 663. Fahnestock. Telephone transmitters. No. 310078. 18. 4. 01 Societe Nettlefolds Ld. et M. Symons. Lampe electrique ä, arc nouvelle on perfectionnee. No. 14 996. Heany. Electric motors. No. 14 t 998. Heany. Electric arc lamps. England. No. 15370. Siemens Bros and Co., Ld. Electric meters for measuring electromotiver force or current strength. No. 15753. Stock. Telephoae exchange. No. 12 709. Lewis. Electric arc lamp. No. 13533. Draulette. Electric motor roads vethicles. No. 13 679. Drake, Sheppart and Nernst Electric Light, Ld. Holders for electrolyte incandescent lamps. Frankreich. No. 15 718. Lake. Preparation of brushes for dynamo elektric machines. No. 310 661. 8. 5. 01. Louberg et Baudry. Nouveau Systeme de compteur d’energie electrique k un on plusieurs tarifs. No. 15534. Bühne. Manufacture of porous metal plates for electric accumulators. No. 310793. 13. 5. 01. Adams. Systeme per- fectionne de commutateur automatique. No. 23155. Feeny. (Allgemeine Elektrizität« Ge sellschaft.) Arrangement and connection for single and multiplex wireless telegraphy. No. 310800. 13. 5. 01. Gould. Perfectionnements dans les Cäbles elefetrique3. No. 7471. Brown. Electric telegraphy. No. 295 439. 4. 5. 01. Loubery. Cert. d’add. pour utilisation accessoire des reseaux ou circuits