The Stridsvagn 74's development path stretches through the Stridsvagn m/40 and m/42 to the original 16,257 kg/16-ton Lago tank, manufactured by the Swedish firm Landsverk for the Hungarian Army.
Two of these were built in Czechoslovakia; the other 46 were built as the Strv m/37 under license by Jungner in Oskarshamn, with AB Volvo providing a more powerful engine, transmission, and tracks, the armor was made by Avesta.
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Subsequently, the tankettes were in service with the infantry regiments I 2, I 9, I 10 and P 1G Armored Company on Gotland.