april 1953

april 1953: 39 companies

1 april 1953 3 companies

2 april 1953 1 companies

7 april 1953 2 companies

8 april 1953 1 companies

9 april 1953 2 companies

10 april 1953 1 companies

13 april 1953 1 companies

14 april 1953 2 companies

15 april 1953 1 companies

16 april 1953 2 companies

17 april 1953 1 companies

18 april 1953 1 companies

20 april 1953 3 companies

21 april 1953 3 companies

22 april 1953 1 companies

23 april 1953 3 companies

24 april 1953 1 companies

27 april 1953 3 companies

29 april 1953 2 companies

30 april 1953 5 companies