april 1955

april 1955: 22 companies

1. april 1955 4 companies

2. april 1955 1 companies

4. april 1955 1 companies

6. april 1955 1 companies

7. april 1955 2 companies

12. april 1955 1 companies

14. april 1955 1 companies

19. april 1955 1 companies

20. april 1955 1 companies

21. april 1955 1 companies

22. april 1955 1 companies

25. april 1955 2 companies

26. april 1955 1 companies

28. april 1955 3 companies

30. april 1955 1 companies