April 1958

April 1958: 93 companies

1 April 1958 49 companies

2 April 1958 1 companies

3 April 1958 2 companies

4 April 1958 3 companies

5 April 1958 1 companies

7 April 1958 5 companies

8 April 1958 4 companies

9 April 1958 2 companies

10 April 1958 6 companies

11 April 1958 3 companies

12 April 1958 1 companies

15 April 1958 6 companies

16 April 1958 1 companies

20 April 1958 1 companies

21 April 1958 1 companies

22 April 1958 1 companies

24 April 1958 1 companies

25 April 1958 1 companies

27 April 1958 2 companies

30 April 1958 2 companies