In 1922 Chicago police experimented with a radio telephone which broadcast at a frequency just above the AM radio band.
Please note: some of the links in older postings on this website may have expired by the time you see them.
« Feds took trademark for Redskins name from team owner Dan Snyder | Main | Chicago police arrested women for wearing revealing swim suits in 1922 »
The comments to this entry are closed.
Comments