april 1956

april 1956: 111 companies

1. april 1956 2 companies

3. april 1956 3 companies

5. april 1956 3 companies

6. april 1956 6 companies

8. april 1956 11 companies

9. april 1956 3 companies

10. april 1956 2 companies

11. april 1956 8 companies

12. april 1956 4 companies

13. april 1956 3 companies

15. april 1956 9 companies

17. april 1956 3 companies

18. april 1956 4 companies

19. april 1956 6 companies

20. april 1956 5 companies

22. april 1956 3 companies

23. april 1956 5 companies

24. april 1956 5 companies

25. april 1956 3 companies

26. april 1956 6 companies

27. april 1956 5 companies

29. april 1956 2 companies

30. april 1956 10 companies