Magnetic Knife Sharpener, A German father-son duo, Otmar an…
Magnetic Knife Sharpener, A German father-son duo, Otmar an…
A German father-son duo, Otmar and Timo Horl, demonstrate their knife sharpening invention, the Rolling Sharpener, which uses neodym magnets at precise 15-degree angles and a smooth walnut or oak wood rotating cylindrical body. The 47th International Exhibition of Inventions took place in Geneva, Switzerland from 10 to 14 April 2019. Copyright: WIPO. Photo: Emmanuel Berrod. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 IGO License.
Magnetic Knife Sharpener, A German father-son duo, Otmar an…
Rolling Knife Sharpener Kit - magnetic knife sharpener with Two Fixed Angles 18 & 22 Degrees - Wooden roller sharpener for knives for Pocket Knife, Kitchen Knives, Chef Knife Set…: Home & Kitchen
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