september 1957

september 1957: 148 companies

1 september 1957 4 companies

2 september 1957 6 companies

3 september 1957 3 companies

4 september 1957 9 companies

5 september 1957 7 companies

6 september 1957 5 companies

8 september 1957 4 companies

9 september 1957 3 companies

10 september 1957 6 companies

11 september 1957 3 companies

12 september 1957 7 companies

13 september 1957 17 companies

15 september 1957 9 companies

16 september 1957 6 companies

17 september 1957 8 companies

18 september 1957 13 companies

19 september 1957 6 companies

20 september 1957 10 companies

21 september 1957 1 companies

23 september 1957 5 companies

25 september 1957 2 companies

29 september 1957 9 companies

30 september 1957 5 companies