april 1964

april 1964: 56 companies

1. april 1964 3 companies

2. april 1964 2 companies

3. april 1964 1 companies

6. april 1964 2 companies

7. april 1964 2 companies

8. april 1964 2 companies

9. april 1964 3 companies

10. april 1964 4 companies

14. april 1964 2 companies

15. april 1964 2 companies

16. april 1964 3 companies

17. april 1964 4 companies

20. april 1964 1 companies

21. april 1964 7 companies

22. april 1964 4 companies

23. april 1964 2 companies

25. april 1964 1 companies

27. april 1964 4 companies

28. april 1964 3 companies

29. april 1964 2 companies

30. april 1964 2 companies