US PATENT SUBCLASS 69 / 6.5
.~ Roughing
Current as of: June, 1999
Click HD for Main Headings
Click for All Classes
DEFINITION
Classification: 69/6.5
(under subclass 1) Machines for treating leather or leather articles by cutting or rasping to produce an uneven surface for cementing.
SEE OR SEARCH CLASS
29, Metal Working,
76.1+, for filing devices generally.
157, Wheelwright Machines,
13, for apparatus and processes for treating the outer periphery of a rubber tire casing by a slitting or machine operation which art (in the absence of this subclass) would ordinarily be classified in accord with the particular operation. (The treating of a rubber casing by abrading is classified in Class 451, Abrading).
451, Abrading, for roughening leather with natural abrasive material (e.g., sandpaper, emery cloth, etc.).
