[1] In World War I, he was part of the antisubmarine group of the National Research Council, and charged with the design and installation of the "high-power transoceanic radio telegraph stations" built by the United States Army and Navy.
[3] He initially worked under Cyril Frank Elwell, who left in 1913, with Fuller then later becoming Chief Electrical Engineer of the company.
[4] In World War I, he was part of the antisubmarine group of the National Research Council, and charged with the design and installation of the "high-power transoceanic radio telegraph stations" built by the United States Army and Navy.
[2] From 1913 to 1919 he led development and manufacture of Poulsen arc transmitters[3] (ranging in sizes from 200, 350, 500 and up to 1,000 kilowatts)[4] for the Army and Navy, which were then installed in stations for trans-oceanic communications in the United States, France, Panama, Hawaii, and across the Pacific to the Philippines.
There he led new high voltage developments and the application of vacuum tubes for the west coast's electric power industry,[3] including power-line communications between Hoover Dam and Los Angeles.
He then returned to Federal Telegraph Company as its executive vice president and chief engineer, managing its plant at Palo Alto.