April 1972

April 1972: 52 companies

1 April 1972 4 companies

5 April 1972 1 companies

6 April 1972 3 companies

8 April 1972 1 companies

9 April 1972 1 companies

10 April 1972 1 companies

11 April 1972 1 companies

13 April 1972 3 companies

14 April 1972 2 companies

15 April 1972 4 companies

17 April 1972 3 companies

18 April 1972 3 companies

20 April 1972 4 companies

21 April 1972 3 companies

22 April 1972 1 companies

24 April 1972 2 companies

25 April 1972 2 companies

26 April 1972 5 companies

27 April 1972 4 companies

28 April 1972 1 companies

29 April 1972 2 companies

30 April 1972 1 companies