(19)
(11) EP 0 891 142 A1

(12)

(43) Date of publication:
20.01.1999 Bulletin 1999/03

(21) Application number: 96937901.0

(22) Date of filing: 06.11.1996
(51) International Patent Classification (IPC): 
A44C 17/ 00( . )
(86) International application number:
PCT/US1996/017708
(87) International publication number:
WO 1998/019575 (14.05.1998 Gazette 1998/19)
(84) Designated Contracting States:
AT BE DE FR GB IT SE

(71) Applicants:
  • Slowinski, Christopher
    Lake Success, NY 11020 (US)
  • Siman-Tov, Avraham
    Ramat Gan (IL)

(72) Inventors:
  • Slowinski, Christopher
    Lake Success, NY 11020 (US)
  • Siman-Tov, Avraham
    Ramat Gan (IL)

(74) Representative: Zinnecker, Armin, Dipl.-Ing., et al 
Lorenz-Seidler-Gossel, Widenmayerstrasse 23
80538 München
80538 München (DE)

   


(54) PRECIOUS STONES HAVING TETRAHEDRON STRUCTURES