Rubuta ci gaba don wannan sakin layi - Oy Insinööritoimisto Ratas ("ofishin injiniya Ratas Inc".; a Turanci "ratas" yana nufin kaya) ya kasance mai gabatarwa (yana nunawa a matsayin kamfanin ba da shawara na injiniya) ta hanyar da aka tattara kusan Finns 1,200 don aikin soja a Jamus a lokacin bazara na 1941, a lokacin tsaka-tsakin zaman lafiya tsakanin ci gaba
da kuma Winter Wars.