april 1973

april 1973: 64 companies

1. april 1973 6 companies

2. april 1973 3 companies

3. april 1973 3 companies

4. april 1973 2 companies

5. april 1973 3 companies

6. april 1973 1 companies

10. april 1973 1 companies

11. april 1973 2 companies

12. april 1973 4 companies

13. april 1973 3 companies

16. april 1973 7 companies

17. april 1973 5 companies

18. april 1973 1 companies

23. april 1973 1 companies

24. april 1973 2 companies

25. april 1973 8 companies

26. april 1973 6 companies

27. april 1973 3 companies

30. april 1973 3 companies