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
Thatch removing device and methods therefore
Deviator system for use in post-tension segmental concrete construction
Method for inspecting bolts
Method for measuring the propagation time of light
Array substrate and liquid crystal display apparatus having the same
Midlet signing and revocation
Gasket for a molded part and method of manufacture and use
  Randomly Featured Patents
Low airflow loss hydrocarbon trap
Apparatus for comminuting and composting of organic waste materials piled up in loose heaps
Drying rack with electronic control
Method for detection of contaminants
Dust separator for separating dust from flowing gaseous media
System and method for prescribing a fitness program
Retroreflective sheet
Competitive board game
Operator control station for controlling different work machines
Self refresh control circuit for memory cell array