(under the class definition) Device including at least two separate holding means, at least one of which is disclosed as being utilized for work holding purposes at a different time than another work holding means, at the will or option of an operator, rather than by machine sequence.
(1) Note. The holding means are separate to the extent that each work holding means can maintain or position a workpiece (a) without requiring the presence of other workpieces or other holding means, or (b) each holding means has its own actuating* and/or adjusting* means.
(2) Note. Excluded from this subclass are patents to a device having a first work holder mounted on a second work
holder so that the first work holder must be completely taken off the second work holder before the second work holder can be utilized.
SEE OR SEARCH THIS CLASS, SUBCLASS:
37+, for patents to a plural holder to hold workpieces relative to each other, and see notes thereunder.
152+, for patents to holder with plural jaw pairs and see notes thereunder. 315+, for patents to a work-stop abutment mounted on another work-stop abutment so that the former must be completely taken off the latter abutment before the latter may be used to engage the work.
