Kent's Knife Cleaner




Kent, 199 High Holborn St., London[1][2]
1848 Advert. G. Kent, Patentee of the Rotary Knife Cleaner, 329 Strand and 101 Holborn Hill.[3]
1856 An example of Kent's Knife Cleaner was listed in an auction of household effects[4], suggesting such machines had been available for some time before this.
1870 George Kent patented designs for the knife cleaner[5]
Perhaps also in 1882 and 1887.