SSLC MATERIALS | PLUS TWO MATERIALS | TRB MATERIALS | SSLC MATERIALS | TET MATERIALS | TNPSC MATER

Wednesday, July 13, 2016

2.tnpsc material

எடிசன் காப்புரிமம் பெற்ற கண்டுபிடிப்புக்களில் ஒரு பகுதி
061 Dynamo-Electric Machines 1880
062 Telephones 1879
063 Carbon Telephones 1879
064 Safety-Conductor for Electric Lights 1880
065 Magnetic Ore-Separator 1880
066 Brake for Electro-Magneto Motors 1881
067 Method of Manufacturing Electric Lamps 1880
068 Addressing Machine 1880
069 Electro-Chemical Receiving Telephone 1882
070 Electric Lamp 1880
071 Magneto Signal Apparatus 1881
072 Manufacture of Carbons for Incandescent Electric Lamps 1881
073 System of Electric Lighting 1881
074 Treating Carbons for Electric Lamps 1881
075 Incandescing Electric Lamp 1881
076 Method of Forming Enlarged Ends on Carbon Filament 1881
077 Relay for Telegraph 1881
078 Regulating the Generation of Electric Currents 1881
079 Webermeter 1881
080 Magneto or Dynamo Electric Machine 1881



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