-
1.发明公开Method and apparatus for providing an identifying indicium to a precious stone including diamonds 失效将识别指标提供给包括钻石的真正石头的方法和装置
公开(公告)号：EP0054840A3
公开(公告)日：1982-10-20
申请号：EP81110279
申请日：1981-12-09
CPC分类号： G09F3/00 , B23K2201/007 , B44B7/00
摘要： A practice for applying indicia to the surface of a precious stone wherein a source of laser energy is directed at the stone surface and controlled to inscribe the surface with the desired indicia.
-
2.发明授权
公开(公告)号：EP0054840B1
公开(公告)日：1986-04-09
申请号：EP81110279.7
申请日：1981-12-09
CPC分类号： G09F3/00 , B23K2201/007 , B44B7/00
-
3.发明公开
公开(公告)号：EP0054840A2
公开(公告)日：1982-06-30
申请号：EP81110279.7
申请日：1981-12-09
CPC分类号： G09F3/00 , B23K2201/007 , B44B7/00
摘要： A practice for applying indicia to the surface of a precious stone wherein a source of laser energy is directed at the stone surface and controlled to inscribe the surface with the desired indicia.
-
-
搜索结果
3 条记录 (耗时 0.007 秒)
筛选
AND
AND
过滤
NOT
NOT
扫码加群
