Resources Contact Us Home
Louis N. Graves Co., Inc. Patents
Louis N. Graves Co., Inc.
Anoka, MN
No. of patents:

Patent Number Title Of Patent Date Issued
4272925 Sharpening apparatus June 16, 1981
A sharpening apparatus includes a base and a pair of thin elongated cylindrical sharpening rods of the type that can be made of a ceramic material which is loaded with a strong abrasive. The rods are storable in a compartment provided by the base in side-by-side relationship and in s
4197677 Blade sharpener April 15, 1980
A blade sharpener includes a thin cylindrical sharpening rod made of a ceramic material which is loaded with a strong abrasive. This rod is equipped at each end with a conical guide-guard. Means is provided to position the rod with one hand so that the other hand can be used to draw

  Recently Added Patents
Methods and apparatus for preserving privacy in an RFID system
Field device configuration system
Perfume bottle
Preserving privacy of digital communication information
Vacuum switch and electrode assembly therefor
Automated pizza preparation and vending system
Techniques for data assignment from an external distributed file system to a database management system
  Randomly Featured Patents
Projection type display apparatus
Automated strategies for investment management
Method for manufacturing an optically active hydroxymethylated compound and a catalyst therefore
Weldability prediction and recommendation systems and methods
6-tetrahydrofurfurylaminofluoran compound useful as a color former
Door brace
Method for noise suppression in an adaptive beamformer
Passively-thermally-stabilized photonic apparatus, method, and applications
Linear vibrator with an increased driving force
Method and system for continuously processing successive workpieces along a production line