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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

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