(under the class definition) Subject matter wherein significance is attributed to a typewriter in which imprinting on a record-medium* is accomplished by a type-die* that contacts a surface of the record-medium and cuts through that surface into the opposite surface to form one or more perforations in the surface, which perforations taken
together represent a character*.
(1) Note. An example of the form of typing accomplished in the typewriter of this and indented subclasses is the writing of a bank check or money order representing an amount of money to be paid, the digits representing the amount being pierced or scarified into the surface of the check so that alteration of the check cannot be accomplished without visible indication of an attempt to alter the check.
