april 1951

april 1951: 24 companies

02. april 1951 3 companies

03. april 1951 1 companies

05. april 1951 1 companies

09. april 1951 2 companies

11. april 1951 1 companies

16. april 1951 4 companies

18. april 1951 3 companies

19. april 1951 1 companies

20. april 1951 1 companies

23. april 1951 1 companies

26. april 1951 2 companies

27. april 1951 2 companies

30. april 1951 2 companies