Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 144/28.7
Name: Woodworking > Special-work machine > Pencil sharpening > Movable tool > Rotatable or revolvable > Planetary
Description: Machine including means to rotate the tool on its own axis and simultaneously to revolve it about another axis through the workpiece so as to maintain it in material-removing contact with the workpiece.










Sub-classes under this class:

Class Number Class Name Patents
144/28.71 Plural tools 5


Patents under this class:

Patent Number Title Of Patent Date Issued
8505596 Cutter assembly for an electric pencil sharpener Aug. 13, 2013
7726365 Electric pencil sharpener Jun. 1, 2010
7699082 Electric multi-pencil sharpener Apr. 20, 2010
6886614 Pencil sharpener May. 3, 2005
6845795 Portable handheld sharpener with loop attachment Jan. 25, 2005
4966208 Pencil sharpener Oct. 30, 1990
4961451 Sharpener for rectangular pencils Oct. 9, 1990
4054164 Pencil sharpener Oct. 18, 1977











 
 
  Recently Added Patents
Method for producing a sulfonated polyarylether block copolymer
Method and system for processing dictated information
Method and apparatus for band switching in wireless local access network
Semiconductor memory device
Herbal composition for the treatment of wound healing, a regenerative medicine
Method and system for establishing enhanced key when terminal moves to enhanced universal terminal radio access network (UTRAN)
Touch panel structure and manufacturing method thereof
  Randomly Featured Patents
Small illuminating switch
Panel container carrier
Laminated identification card having special interlaminar adhesive
Method of producing a multi-phase structured cold rolled high-tensile steel sheet
Wireless transponder for a security system
Waterproof connector
High power density fuel cell comprising an array of microchannels
Rig with clog free high volume drill cutting and waste processing system
Fish hook magazine
Process for preparing crosslinked resin particles