(under subclass 3) Device wherein the portion supported by an operator includes an aperture through which work may extend into a supporting or gripping zone.
(1) Note. Usually, the opening permits a fresh portion of work to be extended into a gripping zone after operation on a previously gripped portion.
SEE OR SEARCH CLASS
30, Cutlery,
124+, for patents to cutlery implements combined with means to hold material to be cut.