Number | Name | Date | Kind |
---|---|---|---|
3222986 | Altman | Dec 1965 | |
3296509 | Katchman | Jan 1967 | |
3363506 | Altman | Jan 1968 | |
3690240 | Gold | Sep 1972 | |
4006971 | Plummer | Feb 1977 | |
4636050 | Tohata et al. | Jan 1987 | |
4717248 | La Russa | Jan 1988 | |
4952946 | Clark et al. | Aug 1990 | |
5087116 | Taylor, II | Feb 1992 |
Number | Date | Country |
---|---|---|
132907 | Nov 1978 | DDX |
Entry |
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"Unusual Optics of the Polaroid SX-7 Land Camera", by Wm. T. Plummer, p. 5, Ins. 11-33. |
Optical Engr. Design, by Robt. Hopkins, Dec. 1988, vol. 27, No. 12, pp. 1019-1026. |
Display System Engineering, H. R. Luremberg, & R. L. Kuehn, pub. McGraw-Hill, 1968. |