January 1961

January 1961: 80 companies

January 3, 1961 3 companies

January 4, 1961 3 companies

January 5, 1961 4 companies

January 6, 1961 6 companies

January 9, 1961 1 companies

January 10, 1961 2 companies

January 11, 1961 4 companies

January 12, 1961 2 companies

January 13, 1961 2 companies

January 16, 1961 4 companies

January 17, 1961 2 companies

January 18, 1961 5 companies

January 19, 1961 9 companies

January 20, 1961 6 companies

January 23, 1961 5 companies

January 24, 1961 4 companies

January 25, 1961 4 companies

January 26, 1961 4 companies

January 27, 1961 4 companies

January 31, 1961 6 companies