april 1955

april 1955: 28 companies

1. april 1955 13 companies

2. april 1955 1 companies

5. april 1955 1 companies

11. april 1955 4 companies

14. april 1955 1 companies

19. april 1955 1 companies

21. april 1955 3 companies

23. april 1955 1 companies

25. april 1955 1 companies

27. april 1955 1 companies

30. april 1955 1 companies