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
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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: 281 Class Title: BOOKS, STRIPS, AND LEAVES Subclass Subclass Number Title 2 STRIPS AND LEAVES 3.1 BOOK AND LEAF 4 .Removable cover 4.1 .Blotter leaf 5 STRIPS 6 .With platen 7 ..Strip retained 8 ...With feed 9 ...With attaching means 10 ..Leaf retained 11 ..With feed 12 ..With attaching means 13 ...Wall 14 .Strip retained 15.1 BOOK, ELEMENT THEREOF, OR ACCESSORY THEREFOR 16 .Multiple 17 ..Removable cover 18 .Sealed 19.1 .Removable cover 19.2 ..Loop engaging 20 .Protectors 21.1 .Binding 22 ..Scrapbook 23 ..Continuous strip 24 ..Guard 26 ..Undercut slot 27 ..Sewed 27.1 ..Ring or arch 27.2 ...Metallic 27.3 ..Metallic 28 ..Elements 29 .Covers 30 ..With pencils 31 ..With pockets 32 ..With pulls 33 ..Easel type 34 ..Removable 35 ..Flexible 36 ..Backs 37 ..Sides 38 .Leaves 39 ..Erasable surface 40 ..Flat opening 41 ...Single leaf 42 ..Book-leaf holders and marks 43 .Book hanger 44 .Pad holder 45 BOOK OR LEAF HOLDER 46 .Cooperating with leaf fold 47 ..Continuous with fold 48 ...Pliant, deformable means 49 ...Hingedd 50 ..Extending through aperture at juncture 51 MISCELLANEOUS * ****************************** * DIGEST * ****************************** DIG 1 Magnet