Lens Minolta F.ROKKOR-QF 1:5.6 f=200mm no. 1212965

I have 2 Minolta-lenses, the one mentioned above and another one f=195mm with no serialnumber and diafragma inscription. Diameter of both lenses inside (to mount filter) 58mm, overall length 66mm.
Fo mounting the lenses there is thread at the outside (approx. 23mm). At the outside of the front is also thread (for sunhood?).
I think that they are lenses for 35mm cinema-projectors, but I am not sure about that.
Another possibility is that the lenses may have been used for camera's in (millitary) airplanes.
I have tried to get an answer at the Konica-Minolta factory but the only answer I got was that Minolta was as good as dismantled so they could not give me the right answers to my question.
Who knows anything about these lenses, they must be rather old but look brandnew.