Dop for gemstone handling during manufacture

申请公布号：

US4944120(A)

申请号：

US19890366928

申请日期：

1989.06.16

申请公布日期：

1990.07.31

申请人：

WEISMAN, ILAN;SHAPIRA, RONI;SHAFIR, RONI;SHTARK, HANOH

发明人：

WEISMAN, ILAN;SHAPIRA, RONI;SHAFIR, RONI;SHTARK, HANOH

分类号：

A44C17/04;B24B9/16

主分类号：

A44C17/04

摘要：

A dop for handling a gemstone comprising an elongate shaft having shank and gripper portions located at respective ends thereof, a shaped portion about the shaft defining a plurality of externally sensible features for providing information uniquely identifying the dop and establishing its spatial orientation and that of the gemstone.