What are the release dates for The 49th Man - 1953?

What are the release dates for The 49th Man - 1953?
The 49th Man - 1953 was released on:

USA: 12 May 1953 (premiere)
USA: 20 May 1953
Sweden: 3 May 1954
Finland: 21 May 1954
Portugal: 1 August 1955