In dictionaries:
Vickers MBT Mark 3
The Vickers Main Battle Tank Mk. 3 is a main battle tank by Vickers, a development of the Vickers MBT, and introduced in 1975 for the export market.
Vickers MBT Mark 4
The Vickers Main Battle Tank Mk. 4 later known as the Vickers Valiant was a main battle tank developed as a private venture by British company Vickers for export.
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