Apparatus for the treatment of hides, skins and leather with a fluid not more specifically provided for elsewhere.
(1) Note. Many of the patents in this subclass and indented subclasses, are directed to apparatus for tanning hides or skins.
(2) Note. This subclass includes the fluid treatment, of hides, skins or leather even though the hair remains thereon, unless there is also some treatment of the hair; for the latter, see this class, subclass 23, or indented subclasses, especially subclass 28.
(3) Note. This and the indented subclasses take patents defining more than mere vat or tank structure. Such structures, per se, are in the appropriate structure class, particularly Class 52, Static Structures (e.g., Buildings), Class 217, Wooden Receptacles, and Class 220, Receptacles, noted below.
SEE OR SEARCH CLASS
8, Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers,
94.1+, for processes of treating hides, skins or leather with a fluid.
34, Drying and Gas or Vapor Contact With Solids, appropriate subclass, for processes and apparatus within the definition of that class: this subclass and indented subclasses including such subject matter when combined with other treatments of hides, skins or leather not provided for in class 34. 52, Static Structures (e.g., Buildings), particularly
192+, and 264+.
68, Textiles: Fluid Treating Apparatus, for apparatus, for the fluid treatment of textiles.
134, Cleaning and Liquid Contact With Solids, and see the notes thereto for other apparatus for treating solid materials other than hides, skins, and leather with liquids.
217, Wooden Receptacles, particularly
4,.
220, Receptacles, appropriate subclasses.
435, Chemistry: Molecular Biology and Microbiology,
265, for apparatus for treating hides, skins, et cetera, by processes which involve fermentation.
