A method for pictorially displaying output information generated in the form of an electrical signal by an apparatus for imaging an object which includes a first display means for visually displaying a working image of the object and a second display means for visually displaying an orientation image...http://www.google.se/patents/US4091374?utm_source=gb-gplus-sharePatent US4091374 - Method for pictorially displaying output information generated by an object imaging apparatus
