Number | Name | Date | Kind |
---|---|---|---|
2803884 | Polley | Aug 1957 | |
4194814 | Fischer et al. | Mar 1980 | |
4219721 | Kamen et al. | Aug 1980 | |
4976533 | Hahn et al. | Dec 1990 | |
5062701 | Drazba et al. | Nov 1991 | |
5467149 | Morrison et al. | Nov 1995 | |
5641437 | Williams et al. | Jun 1997 |
Number | Date | Country |
---|---|---|
6-230321 | Aug 1994 | JPX |
7-186290 | Jul 1995 | JPX |
Entry |
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Mandell, Robert B., Contact Lens Practice, Fourth Edition, pp. 669-678 (1988). |