What are the release dates for The Steel Helmet - 1951?

What are the release dates for The Steel Helmet - 1951?
The Steel Helmet - 1951 was released on:

USA: 10 January 1951 (Los Angeles, California)
USA: 2 February 1951
Sweden: 21 March 1951
Japan: 3 August 1951
Denmark: 27 December 1951
Philippines: 29 April 1952 (Davao)
France: 30 April 1952
Finland: 6 June 1952
West Germany: 13 March 1953
Greece: 31 October 2010 (Panorama of European Cinema)