april 1968

april 1968: 44 companies

2. april 1968 3 companies

3. april 1968 1 companies

4. april 1968 1 companies

5. april 1968 6 companies

6. april 1968 2 companies

8. april 1968 4 companies

9. april 1968 1 companies

10. april 1968 2 companies

11. april 1968 1 companies

13. april 1968 2 companies

15. april 1968 7 companies

18. april 1968 1 companies

24. april 1968 2 companies

26. april 1968 3 companies

27. april 1968 1 companies

29. april 1968 1 companies

30. april 1968 6 companies