ZA803273B
(en )
1981-06-24
Security container for diamonds and other precious stones
IL51384A
(en )
1978-08-31
Method and apparatus for assessing the characteristics of precious stones
EG13775A
(en )
1982-06-30
Method and apparatus for rice polishing
JPS5485495A
(en )
1979-07-07
Method and grindstone for grinding gear
GB2082100B
(en )
1983-07-06
Method and apparatus for bruting precious or semi-precious stones
GB2010736B
(en )
1982-05-06
Abrasive casting apparatus and process
JPS53140692A
(en )
1978-12-07
Wax substance treating grind stone
JPS5444299A
(en )
1979-04-07
Grinding method and apparatus
HK23881A
(en )
1981-06-05
Improvements in jewellery bracelects
ZA775539B
(en )
1978-09-27
Apparatus for polishing precious and semi-precious stones
IL48765A
(en )
1978-04-30
Method of polishing gemstones
JPS5419293A
(en )
1979-02-13
Method of and device for truing peripheral surface of grinding stone
GB1531570A
(en )
1978-11-08
Method of and apparatus for grinding polishing or lapping gems or stones
IL56108A
(en )
1981-11-30
Ore dressing process
ZA765540B
(en )
1977-11-30
Polishing of precious and semi-precious stones
JPS53101189A
(en )
1978-09-04
Special grinding stone
JPS53129397A
(en )
1978-11-11
Method of and device for grinding free contours
JPS53145192A
(en )
1978-12-18
Polishing method and device
JPS5437123A
(en )
1979-03-19
Method and apparatus for making natural stone block
IL63180A
(en )
1984-08-31
Method and machine for kerving gem stones
JPS53101793A
(en )
1978-09-05
Method of truing cuttfeed crush of screwwshaped grinding stone
IL53125A0
(en )
1977-12-30
Device for holding precious stones during cutting and polishing the facets thereof
IL54776A
(en )
1982-09-30
Apparatus for grinding gem stones
JPS5321668A
(en )
1978-02-28
Method and apparatus for dyeing precious stone
JPS53148795A
(en )
1978-12-25
Polishing method and device