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