00926nam0-22003131i-450-99000051094040332120080221092713.0000051094FED01000051094(Aleph)000051094FED0100005109420020821d1931----km-y0itay50------baenga-------001yy<<The >>jet-wave rectifieran account of its constructional development during the years 1919-1929Jul. HartmannKøbenhavnDanmarks naturvidenskabelige samfund1931300 p.ill.27 cmIngeniørvidenskabelige skrifter24CommutatoriMacchine elettriche621.316621.313Hartmann,JuliusITUNINARICAUNIMARCBK99000051094040332110 F I 1012410DINELDINELUNINA