april 1955

april 1955: 15 companies

1 april 1955 3 companies

2 april 1955 2 companies

3 april 1955 1 companies

13 april 1955 1 companies

15 april 1955 1 companies

19 april 1955 1 companies

21 april 1955 1 companies

22 april 1955 1 companies

26 april 1955 1 companies

27 april 1955 1 companies

28 april 1955 1 companies

30 april 1955 1 companies