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.
Class Number: 125 Class Title: STONE WORKING Subclass Subclass Number Title 1 MISCELLANEOUS 2 DRESSING 3 .Rotary cutter 4 ..Cutter-support feed 5 ..Rotary tools 6 .Pick-action cutter 7 ..Cutter-support feed 8 .Arm-supported tool 9 PLANING 10 TURNING 11.01 .Grinding-wheel dressing 11.02 ..Indexing of tool point 11.03 ..Rotary or crush dressing 11.04 ..Contouring of grinding wheel face 11.05 ...Cam controlled 11.06 ...Templet- or pattern-controlled 11.07 ....Hydraulically actuated 11.08 ....Pantograph 11.09 ....Fulcrum bar 11.1 ...Tangent bar forms arcuate surface 11.11 ...Forming arcs and tangents thereto 11.12 ...Generation of arc or bevel by two or more tools 11.13 ...With compound motion of tool 11.14 ...Arc forming by swinging tool 11.15 ...Forming bevel 11.16 ....By swinging tool 11.17 ..Transverse swinging motion to form planer surface 11.18 ..Peripheral grinding face 11.19 ..Radial grinding face 11.2 ..Hydraulic tool traversing means 11.21 ..Rectilinearly reciprocating tool 11.22 ..Coolant supply 11.23 ..With compensator for tool wear 12 SAWING 13.01 .Rotary 13.02 ..Having internal cutting edge 13.03 ..With pivoted frame 14 ..Saw-support feed 15 ..Saw blades 16.01 .Reciprocating 16.02 ..Having saw with supply and take-up means 16.03 ..Lever-operated saw 16.04 ..Angular cutting saws 17 ..Saw racks 18 ..Saw blades 19 .Oscillating 20 .Disk cutting 21 .Endless 22 .Saw teeth 23.01 SPLITTING, SHEARING, AND PUNCHING 23.02 .Roller-type cutter 24 .Mica splittingg 25 SLATE SURFACING 26 BRICK CLEANING 27 MILLSTONE DRESSING 28 .Rotary cutter 29 .Pick-action cutter 30.01 PRECIOUS STONE WORKING 30.02 .Wire drawing die making 35 WORK SUPPORTS 36 TOOLS 37 .Traction rotated 38 .Surface traversing 39 ..Diamond 40 .Impact 41 ..Bush hammers and chisels 42 ..Millstone picks 43 ..Miners' picks * ****************************** * CROSS-REFERENCE ART COLLECTION * ****************************** 901 FORMING PIEZOELECTRIC CRYSTALS