April 1970

April 1970: 54 companies

2 April 1970 1 companies

4 April 1970 6 companies

6 April 1970 5 companies

9 April 1970 6 companies

13 April 1970 10 companies

14 April 1970 3 companies

17 April 1970 11 companies

18 April 1970 1 companies

21 April 1970 5 companies

23 April 1970 6 companies