Number | Date | Country | Kind |
---|---|---|---|
3821/87 | Oct 1987 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
3244062 | Sweet | Apr 1966 | |
3825322 | Mast | Jul 1974 | |
4076421 | Kishner | Feb 1978 | |
4078858 | Mast | Mar 1978 |
Number | Date | Country |
---|---|---|
209860 | Jan 1987 | EPX |
3421577 | Dec 1985 | DEX |
Entry |
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"The Mangin Mirror as Imaging Element" (Riedl) 2450 Electro Optics, (1983) Jun., No. 6, Chicago, Ill., pp. 50-54. |
European Search Report No. RS 79804 CH. |