Amalgamated Broadcasting System ended in 1933.
Amalgamated Broadcasting System was created in 1933.
Mutual Broadcasting System ended in 1999.
Liberty Broadcasting System ended in 1952.
Amalgamated Society of Woodworkers ended in 1971.
Amalgamated Society of Engineers - Australia - ended in 1938.
National Amalgamated Union of Labour ended in 1924.
Amalgamated Clothing Workers of America ended in 1976.
Sheffield Amalgamated Union of File Trades ended in 1970.
Amalgamated Union of Building Trade Workers ended in 1971.
Maritime Broadcasting System was created in 1969.
Seoul Broadcasting System was created in 1990.
Broadcasting System of San-in was created in 1954.