april 1961

april 1961: 114 companies

1 april 1961 54 companies

3 april 1961 3 companies

5 april 1961 5 companies

7 april 1961 1 companies

8 april 1961 1 companies

9 april 1961 1 companies

10 april 1961 5 companies

11 april 1961 1 companies

12 april 1961 2 companies

13 april 1961 1 companies

14 april 1961 1 companies

15 april 1961 9 companies

18 april 1961 2 companies

19 april 1961 2 companies

20 april 1961 10 companies

21 april 1961 1 companies

24 april 1961 2 companies

25 april 1961 3 companies

26 april 1961 1 companies

27 april 1961 2 companies

29 april 1961 2 companies

30 april 1961 5 companies