I'm puzzled.
Those lenses were made for economical documentation of X-ray mass screening, by not exposing a large film directly by x-rays but by mini copying the image of a large x-ray fluorescent screen onto small format film.
Mustafa though experienced that the lens yields a rather huge image circe, and thus angle of view (at what extention?).
The description in that magazine speaks of only 7.5mm space between rear lens and film for minification!
EDIT:
It doers not need to have a large (unused) angle of view. In case that lens has a common angle of view but a large filmside angle of coverage, by using at large extension, a large image will result.