METALLIC SPRING STRETCHER AND/OR COMPRESSOR, (E.G., LEAF,HELICAL OR COIL SPRINGS):
(under the class definition) Device, the claimed structure of which functions as disclosed to engage an exert compressive, torsion or tensile forces on articles made of metal and usually known as "springs".
SEE OR SEARCH CLASS
29, Metal Working,
213.1+, for engine valve spring compressors, and subclasses 225+ for spring appliers and removers; and see the class definition of this class (254) for a statement of the line between Classes 29 and 254.
81, Tools,
3.7, for a tool for spreading portions of a leaf spring, subclass 485 for other hand manipulated spreading tools, and subclass 486 for a hand manipulative tool for placing a resilient article under tension or compression.
