Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Household
Class Information
Number: 30/460
Name: Cutlery > Static pencil sharpener > Having conical or cylindrical work guide > Open-ended for point protection during writing
Description: Device having an opening through the end thereof opposite and aligned with the entrance portion of the guide, which opening is large enough to permit the protrusion therethrough of only a reduced working end of the workpiece so as to permit retention of the device on the workpiece during, and without interference with, the marking operation.










Patents under this class:

Patent Number Title Of Patent Date Issued
4934057 Multi-blade pencil-core sharpener Jun. 19, 1990
4755074 Pencil sharpener Jul. 5, 1988











 
 
  Recently Added Patents
Method for conductivity control of (Al,In,Ga,B)N
System and method to assess and report the health of landing gear related components
Mobile terminal
Manufacturing process for cellular screening substratum, resultant substratum, and method and apparatus for screening
Method and apparatus for connecting to external device
Method for transforming a single reactor line
Polyurethane resin, toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
  Randomly Featured Patents
Probe needle for testing semiconductor chips and method for producing said probe needle
Marker
Wireless pressure sensing rock climbing handhold and dynamic method of customized routing
Golf club head
Method for producing selected mass spectra
Vertical sync detection and output for video decoder
Pulse rate monitoring device
Thermosensitive biodegradable hydrogels for sustained delivery of leptin
Optical fiber biosensor array comprising cell populations confined to microcavities
Machines for inserting or removing fixed length data at a fixed location in a serial data stream