Abstract :
Miscellaneous radio inventions of Mr. Hammond relate to rebroadcasting, the use of broadcast transmitters for simultaneous telegraphy and telephony, radio typewriters, and automatic radio compasses. In 1928, he established a special purpose radiotelephone system in Italy and was decorated as a Grand Officer of the Crown. In the musical field, his inventions relate to pipe organs, pianos, and high quality sound productions from film and disk records. Mr. Hammond is a director of the Radio Corporation of America (RCA), and president of the Hammond Research Corporation. He is a member of many engineering and scientific societies, became an Associate member of the IRE in 1912 and a Member in 1914. A brief biography is provided.