Since the gas generator for the 12 cm sjömålsgranat m/70 (12 cm anti-shipping shell m/70), used in the 12 cm TAP m/70 fixed coastal artillery gun, was to be manufactured by a company in the US, the classification secret was removed from the patent.
Kuna 12 cm laevavastase m/70 laskemoona (12 cm sjömålsgranat m/70) kasutatavat gaasi generaatorit hakkas tootma USA-s põhinev firma, tuli patendilt eemaldada salajane klassifikatsioon.