Kent's Patent Rotary hand-powered knife cleaning machine
1910
1910
1903-1905
1931
1951
1923
1910
1937
1952
1907
1985-2005
1912
1940-1950
1905
1945
1968-1969
1925
1880-1885
1922
1992
1965
1953
1948
1954
1921-1935
1937
1891
1931
1993
1919
1937
1914
1919
1951
1908
1953
1911
1937
1916
1929
1957