R.M.A. - RTMA - RETMA - EIA Source Codes
Originally published by Photofacts, 1946 through 1963

RMA, RTMA, RETMA, and EIA Registration Lists - Code symbols assigned to radio-television manufacturers and suppliers listed both alphabetically by companies and numerically by code numbers. Several also include week codes for that year. Years Available:    1946    1949 - View    1950    1951    1952    1953    1954 - View    1955    1956    1957    1958    1959    1960 - View    1961    1962    1963 Years listed at left may be purchased and downloaded instantly. All files are supplied in printable PDF format.