system of distribution and regulation of electric current
duplex telegraph system
fluoroscope
motion picture camera
incandescent light
carbon telephone transmitter
quadruplex transmission
battery
magnetic ore separator
automatic telegraph system
Fluorescent electric lamp
paraffin paper
electrical vote recorder
"Etheric Force"
"Edison Effect"
motograph
sextuplex transmission
phonograph
electric pen
"Edison dynamo"
electric saftey miner's lamp
unison stop
multiplex telegraph system
universal stock ticker
carbon rheostat