April 1952

April 1952: 100 companies

1 April 1952 1 companies

2 April 1952 1 companies

3 April 1952 10 companies

4 April 1952 4 companies

6 April 1952 4 companies

7 April 1952 10 companies

8 April 1952 6 companies

9 April 1952 6 companies

11 April 1952 3 companies

13 April 1952 3 companies

14 April 1952 3 companies

15 April 1952 6 companies

18 April 1952 11 companies

19 April 1952 1 companies

20 April 1952 4 companies

21 April 1952 5 companies

22 April 1952 5 companies

24 April 1952 7 companies

25 April 1952 3 companies

29 April 1952 7 companies