(under subclass 289) Device wherein the work bearing surface of the support has an interruption or a reentrant portion and the structure of the work bearing surface of the support is so constructed and disposed that, when the work is held during treatment, spaced portions of the work undersurface are in contact with the support, said spaced portions having between them a portion of the work under-surface that is not in contact with the support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
304, for a work-stop abutment having connected thereto a work support portion closing a gap in the support.
