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4405214 | Bolle | Sep 1983 | |
4762407 | Anger et al. | Aug 1988 | |
5526069 | Tseng | Jun 1996 | |
5602603 | Bondet | Feb 1997 |
Number | Date | Country |
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77 11547 | Apr 1977 | FRX |
85 08326 | Jun 1985 | FRX |
30 38 032 A1 | Apr 1981 | DEX |
197 21 306 A1 | Nov 1998 | DEX |
PCTUS8600310 | Feb 1986 | WOX |
Entry |
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Optik, Augenoptik und Augenschutz, Beuth Verlag GMBH, Taschenbuch 177, 1984, pp. 15-21. |
Brillentechnik, Ulrich Maxam, Veb Verlag Technik Berlin, Linsen Fassungen Anpassung Instandsetzung, 1983, p. 30. |