Gemstone polishing machine, in which the weight load on the main spindle and thus the working pressure increases as the work piece progresses
DE361662C
Swinging double holder for machines for polishing gemstones
DE376256C
Process for coarse and fine grinding or polishing of precious stones
DE376255C
On gemstone grinding and polishing machines with double holder adjustable according to a curved guide, the device for lifting the frame piece carrying the double holder
DE376768C
On gemstone grinding and polishing machines with a double holder adjustable according to a curved guide, the device for various types of adjustment of the main shaft
US1364353A
Method and means for holding diamonds during the polishing operation
US1329374A
Cement for holding diamonds during polishing
DE324125C
Refractory cement for holding diamonds while polishing
US1329372A
Art of polishing diamonds
US1329370A
Means for holding diamonds during abrasive treatment
US1329371A
Means for holding diamonds during the polishing operation
