CH69810A
(en )
1915-08-02
Apparatus for sharpening and honing razor blades
CH75479A
(en )
1918-01-02
Apparatus for holding razor blades while sharpening and honing the same
CH66911A
(en )
1914-10-16
Apparatus for holding mower blades intended for sharpening
CH73827A
(en )
1916-12-01
Apparatus for sharpening safety razor blades
CH69996A
(en )
1915-08-16
Machine for sharpening and honing knife blades for security devices
CH86889A
(en )
1920-10-16
Device for sharpening and honing safety razor blades.
CH73487A
(en )
1916-10-02
Machine for sharpening razor blades
CH76457A
(en )
1918-01-02
Device for sharpening and cleaning knife blades
CH67623A
(en )
1914-12-16
Device for grinding circular knives and similar rotary tools
CH73006A
(en )
1916-08-01
Grinding and honing device for razor blades
CH83010A
(en )
1919-11-01
Sharpening bodies for apparatus for sharpening blades for safety razors
CH50394A
(en )
1911-05-16
Apparatus for sharpening knives
CH62297A
(en )
1913-11-17
Device for sharpening and cleaning knives and for cleaning forks
CH76229A
(en )
1917-11-16
Machine for sharpening razor blades
CH49269A
(en )
1911-01-16
Method and device for sharpening millstones
CH53044A
(en )
1912-01-16
Machine for cleaning and sharpening knives
CH142225A
(en )
1930-09-15
Method and device for grinding, sharpening and polishing the teeth of tear rollers and saw-tooth rollers.
CH58731A
(en )
1913-04-01
Device for reaming or grinding bones and other hard materials
CH62393A
(en )
1913-11-17
Device for polishing the track journals of balance wheels and other clock wheels
DK21624C
(en )
1916-11-06
Razor Sharpening Apparatus.
AT98658B
(en )
1924-12-10
Device for sharpening and honing safety razor blades.
CH62831A
(en )
1913-12-16
Method and apparatus for finishing the edges of pieces of leather
DK28235C
(en )
1921-08-22
Apparatus for sharpening razor blades.
CH53471A
(en )
1912-03-01
Apparatus for polishing gemstones
DK23975C
(en )
1919-01-13
Apparatus for Sharpening Knives and Scissors.