(under the class definition) Apparatus comprising a tool drive means and a means to positively cause or progressively control the forward movement of the tool or a means specifically adapted to be engaged by the hand of the operator to manipulate the drive, and one of the latter means is adapted to move relative to the drive means to operate a means to initiate, modify, or terminate the operation of the tool drive means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
2+, for automatic control of power operated means.
13+, for drive controlled by relative axial movement of tool.
58, for work cleansing controlled by relative movement between drive and tool, advance causing or controlling means or manipulating handle.
