CH67284A
(en )
1914-11-16
Device for the production of doublets for holding precious stones in place during grinding or polishing
CH67286A
(en )
1914-11-16
Device for grinding and polishing precious stones
CH67287A
(en )
1914-11-16
Device for grinding and polishing precious stones
AT82966B
(en )
1921-02-25
Method and device for the production of protective fabric covers for wheel shells
CH67285A
(en )
1914-11-16
Double for holding gemstones while grinding or polishing
CH75480A
(en )
1917-08-01
Fine grinding tool for polishing lenses
CH65392A
(en )
1914-06-16
Device for grinding diamonds
CH56191A
(en )
1912-10-01
Device for turning grinding stones
CH60721A
(en )
1913-08-01
Process for the extraction of shaped stones in quarries
CA162864A
(en )
1915-06-01
Apparatus for grinding and polishing precious stones
CH64660A
(en )
1914-04-16
Process for the production of artificial stones and artificial stone slabs and plant for carrying out the process
CH58731A
(en )
1913-04-01
Device for reaming or grinding bones and other hard materials
CH74874A
(en )
1917-05-01
Method and device for grinding glass and similar materials
US1613393A
(en )
1927-01-04
Process of treating marble
CH62393A
(en )
1913-11-17
Device for polishing the track journals of balance wheels and other clock wheels
CA162863A
(en )
1915-06-01
Apparatus for polishing precious stones
CH63507A
(en )
1914-02-02
Method and device for edging Solnhofen stone slabs
CH58362A
(en )
1913-03-01
Device for cleaning and polishing footwear
CH65586A
(en )
1914-06-16
Device for the automatic supply of cooling water for grinding wheels
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
CH81282A
(en )
1919-06-02
Method of manufacturing artificial whetstones for lithographic stones, marble and the like
CH73219A
(en )
1916-09-01
Machine for grinding and polishing precious stones, especially diamonds
CH70656A
(en )
1915-10-16
Machine for the automatic polishing of gemstones
CH73174A
(en )
1916-09-01
Process for coloring artificial stone work
CH45673A
(en )
1909-12-01
Device for polishing rod-shaped metal bodies of circular cross-section