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DEVICE FOR SECURING A FILM FOR DENTAL X-RAY TO A RIGHT-ANGLED FILM HOLDER AND AIMING ROD BY MEANS OF A RAY-PERMEABLE BITE BLOCK WITH FILM SUPPORT AND AN ANTAGONIST BITE PLATE
DEVICE FOR SECURING A FILM FOR DENTAL X-RAY TO A RIGHT-ANGLED FILM HOLDER AND AIMING ROD BY MEANS OF A RAY-PERMEABLE BITE BLOCK WITH FILM SUPPORT AND AN ANTAGONIST BITE PLATE