CH40080A
(en )
1908-05-16
Hand grindstone for grinding lithography stones
CH75480A
(en )
1917-08-01
Fine grinding tool for polishing lenses
AT31949B
(en )
1908-02-25
Device for grinding and polishing glassware.
AT51335B
(en )
1911-12-27
Stone grinding machine.
CH56191A
(en )
1912-10-01
Device for turning grinding stones
FR378026A
(en )
1907-09-21
Stone for hand polishing lithographic stones
CH46031A
(en )
1910-01-17
Device for grinding or polishing footwear parts
CH46177A
(en )
1910-02-01
Machine for grinding and grinding grain
CH38832A
(en )
1908-01-02
Machine for grinding surfaces on small prismatic bodies
CH35128A
(en )
1906-07-15
Machine for grinding watch glasses on the edge
CH50035A
(en )
1911-04-17
Machine for mixing sand and stone chips
CH49162A
(en )
1911-01-16
Double insert for grinding diamonds
CH46623A
(en )
1910-04-01
Grinding device with removable grindstone
CH59950A
(en )
1913-06-16
Machine for automatic grinding of flat surfaces, especially lithographic stones
CH42178A
(en )
1909-01-02
Disk mill for grinding solid bodies
CH38154A
(en )
1907-09-15
Machine for cleaning, sanding and polishing wooden objects
FR410355A
(en )
1910-05-19
Grinding wheel dressing machine
CH65392A
(en )
1914-06-16
Device for grinding diamonds
FR396186A
(en )
1909-04-03
Advanced grinding wheel
FR362180A
(en )
1906-06-09
Grinding machine intended more specifically for dressing the surface of rut rails
CH54890A
(en )
1912-07-01
Machine for grinding rollers
CH55505A
(en )
1912-09-02
Machine for working stones
CH53044A
(en )
1912-01-16
Machine for cleaning and sharpening knives
FR386436A
(en )
1908-06-13
Grinding machine
CH67287A
(en )
1914-11-16
Device for grinding and polishing precious stones