... Alexander de Lodyguine , Paris , France , assignor by mesne assignments , to the West- inghouse Electric and Manufacturing Company , Pitts- burgh , Pa . Filed Sept. 14 , 1888 . 494 , 150. Incandescent Lamps . Alexander de Lody- guine ...
... Alexander de Lodyguine , Paris , France , assignor by mesne assignments , to the West- inghouse Electric and Manufacturing Company , Pitts- burgh , Pa . Filed Sept. 14 , 1888 . 494,150 . Incandescent Lamps . Alexander de Lody- guine ...
... Alexander de Lodyguine and applied and obtained patents for incandescent lamps having chromium, iridium, rhodium, ruthenium, osmium, molybdenum and tungsten filaments, and a bulb using a. Fig 44.2 40-watt light bulbs with standard E10 ...
... Alexander N. Lodyguine , a well - known Russian inventor and en- gineer who loves America , and loves it because he knows it well . re- The announcement of the paper on the correspondence schools was ceived by the audience with icy ...
FULLY REVISED & UPDATED 2ND EDITION Alasdair Nairn. In the 1860s, Alexander de Lodyguine lit the St Petersburg dockyards with arc lighting that he immersed in an inert gas to retard consumption. But it was his fellow Russian, Paul ...
... Lodyguine , Alexander de , Pittsburg , Pa . Illuminant for incandescent lamps . Lodyguine , Alexander de , Pittsburg , Pa . Illuminant for incandescent lamps . Loeb , Rudolf , Camden , assignor of one - half to G. Bourquin ...
... Lodyguine , Alexander de , Paris , France . Incandescent electric lamp . Lodyguine , Alexandre de , Paris , France , assignor , by mesne assignments , to Westinghouse Electric and Manufacturing Company , Pittsburg , Pa . Manufacturing ...
... Lodyguine , Alexander de , Paris , France . Incandescent electric lamp . Lodyguine , Alexandre de , Paris , France , assignor , by mesne assignments , to Westinghouse Electric and Manufacturing Company , Pittsburg , Pa . Manufacturing ...
... Lodyguine , Alexander de , Paris , France . Incandescent electric lamp . Lodyguine , Alexandre de , Paris , France , assignor , by mesne assignments , to Westinghouse Electric and Manufacturing Company , Pittsburg , Pa . Manufacturing ...
... Alex . de Lodyguine , Paris , France . Application filed Sept. 14 , 1888. A process of making carbon filaments for electric lamps by dehydrating and decomposing the incandescents or filaments by the action of a chemical agent ; then ...