A dental pantograph capable of measuring mandibulary movement includes right and left side housings have orthogonally located X, Y and Z scales. The housing further includes X, Y and Z scale transducers for reading reference marks on the respective scales. The scales are slidable with respect to the...http://www.google.fr/patents/US4561846?utm_source=gb-gplus-shareBrevet US4561846 - Dental pantograph
