(under subclass 118) Screed device provided with means to move said screed back and forth along its extent while traversing the material.
(1) Note. A significant number of the devices in subclass 119 relate to reciprocating screed devices and a complete search for this characteristic must include subclass 119. Other than a few representative copies no patents have been cross-referenced from subclasses 119 to 120.
SEE OR SEARCH THIS CLASS, SUBCLASS:
102, for a material distribution device with a reciprocating screed.
114, for an agitator fastened on a screed.
SEE OR SEARCH CLASS
425, Plastic Article or Earthenware Shaping or Treating: Apparatus, 456, for vibrating shapers.
