PTO Manual of Classification for US patents

PTO Manual of Classification for US patents

What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.


Enter a class/subclass code here to get a list of patent titles. Use any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any subclass letters capitalized. Currently Design Patent titles (those in the classes of the form Dxx.yy) are not retreivable.

Enter class/subclass code:


Class Number: 142
 Class Title: WOOD TURNING

Subclass  Subclass
Number    Title

  1       MISCELLANEOUS
  *       POLYGONAL SECTION
  2       .Annular work holders
  52      ..Chucks
  *       PATTERN SECTION
  3       .Many-spindle lathes
         .Oval form
  16      ..Guided chucks
  51      ...Counterpoises
         .Copying
         ..Cutter
  7       ...Laterally and longitudinally movable
         ...Rotary
  11      ....Fixed bearings
  13      ...Laterally movable
  15      ...Longitudinally movable
         .Clamped work
         ..Cutter chisel
  8       ...Laterally and longitudinally movable
         .Cam controlled
         ..Cutter
  6       ...Laterally and longitudinally movable
         ...Rotary
  10      ....Fixed bearings
  12      ...Laterally movable
  14      ...Longitudinally movable
         .Cutter
  9       ..Rotary
  *       CIRCULAR SECTION
  4       .Many-spindle lathes
  5       ..Automatic spindle feed
         .Spiral grooving
  23      ..Hollow cutter head
         ..Cutter
  26      ...Rotary
  24      ....Pattern guide
  25      ....Hollow mandrel
  33      ....Rack-and-pinion feed
  34      ....Roller feed
  35      ...Chisel
  17      .Automatic spindles lathes
  18      ..Endless feed
  19      ...Disk
  20      ..Chute feed
         .Clamped work
         ..Hollow cutter head
  45      ...End turning
         ..Cutter chisel
  46      ...Longitudinally movable
  32      .Hollow cutter head
  31      ..Cutter chisel
  27      ...Radially movable, pattern guidee
  28      ....Rotary
         ...Pattern
  30      ....Radially movable
  29      ...Radially movable
         .Cutters
         ..Chisels, plain and pattern
  21      ...Pattern guide
         ..Rotary and chisel
  22      ...Pattern
         .Cutter
         ..Slicing
  36      ...Longitudinally movable
  40      ..Rotary
  37      ...Pattern guide
  41      ...Pattern
  42      ..Chisel
  38      ...Pattern guide
  39      ....Rotary
  43      ...Pattern
  44      ....Disk
  47      CARRIAGE FEED
  48      TOOL RESTS AND WORK SUPPORTS
  49      TOOL RESTS
  *       STEADY RESTS
  50      .Yielding
  53      LATHE CENTERS
  54      HOLLOW MANDRELS
  55      ATTACHMENTS
  56      TURNING TOOLS
  *       WORK HOLDERS
  57      .Socket