April 1960

April 1960: 233 companies

1 April 1960 12 companies

3 April 1960 9 companies

4 April 1960 14 companies

5 April 1960 13 companies

6 April 1960 3 companies

7 April 1960 12 companies

8 April 1960 19 companies

10 April 1960 10 companies

13 April 1960 14 companies

14 April 1960 11 companies

15 April 1960 5 companies

17 April 1960 2 companies

19 April 1960 17 companies

20 April 1960 7 companies

21 April 1960 5 companies

22 April 1960 11 companies

24 April 1960 11 companies

25 April 1960 8 companies

26 April 1960 13 companies

27 April 1960 20 companies

28 April 1960 10 companies

29 April 1960 7 companies