April 1971

April 1971: 241 companies

2 April 1971 15 companies

4 April 1971 3 companies

5 April 1971 5 companies

6 April 1971 11 companies

8 April 1971 17 companies

18 April 1971 48 companies

20 April 1971 1 companies

23 April 1971 14 companies

25 April 1971 29 companies

26 April 1971 46 companies

27 April 1971 43 companies

28 April 1971 2 companies

30 April 1971 7 companies