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
Liquid low temperature injection molding process
Wafer level package and fabrication method
Key management using quasi out of band authentication architecture
Method and apparatus for eliminating a motor vehicle tip-over risk
Algorithm for color corrected analog dimming in multi-color LED system
System and method for evaluating equipment rack cooling performance
Conversion of 5-(chloromethyl)-2-furaldehyde into 5-methyl-2-furoic acid and derivatives thereof
  Randomly Featured Patents
Photographic dye-forming coupler, emulsion layer, element, and process
Refrigerator comprising an extractably guided receptable for chilled goods
Distributed control system for powder coating system
Fluid pressure responsive transducer apparatus
Structural airfoil having integral expulsive system
Method for asymmetric spacer formation
Sheet-shape adhesive preparation
Security system network
Hose support
Multiplexed data producing apparatus, encoded data reproducing apparatus, clock conversion apparatus, encoded data recording medium, encoded data transmission medium, multiplexed data producin