April 1951

April 1951: 38 companies

1 April 1951 21 companies

2 April 1951 2 companies

4 April 1951 2 companies

5 April 1951 1 companies

6 April 1951 1 companies

10 April 1951 2 companies

11 April 1951 1 companies

15 April 1951 1 companies

17 April 1951 1 companies

20 April 1951 1 companies

21 April 1951 1 companies

23 April 1951 1 companies

24 April 1951 1 companies

28 April 1951 2 companies