(under the class definition) Device in accordance with part (1) or part (2) thereof including means which causes motion of a perforated or unperforated sheet* relative to the sheet retainer* in such a direction that the sheet retainer passes through the thickness dimension of the sheet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1, for a sheet retention device which includes a separate aperture making device no part of which cooperates with the sheet retainer to make a hole in the sheet.
7, for a device including a sheet retainer which penetrates and inserts a binder strand through a sheet.
SEE OR SEARCH CLASS
83, Cutting, appropriate subclass for a cutting device for forming an aperture in a sheet.
