Resources Contact Us Home
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
Program recording medium, image processing apparatus, imaging apparatus, and image processing method
Control unit including a computing device and a peripheral module which are interconnected via a serial multiwire bus
Formulations, their use as or for producing dishwashing detergents and their production
Charged-particle beam lens
Semiconductor overlapped PN structure and manufacturing method thereof
DKK1 oncogene as therapeutic target for cancer and a diagnosing marker
  Randomly Featured Patents
Antenna for wireless communication system
Lamp monitoring and control system and method
Thin film magnetic head including a coil insulating resin filler and an insulating metallic layer covering at least partly the insulating resin filler on a datum plane
System and method for developing information for a wireless information system
Process for preparing polyolefins
Cold working steel bar and wire rod produced by continuous casting
Skin prickers
Surface access double hemostatic valve for hemodialysis
Air pump (4)
Method for changing knives in a mower