This application is a continuation, of application Ser. No. 06/384,033, filed May 1, 1982 now abandoned.
Number | Name | Date | Kind |
---|---|---|---|
2168221 | Land | Aug 1939 | |
2420270 | Thomas | May 1947 | |
2904662 | Spring | Sep 1959 | |
3107350 | Arrasmith | Oct 1963 | |
3188437 | Lauren | Jun 1965 | |
3226864 | Renler | Jan 1966 | |
3511560 | Hamilton | May 1970 | |
3682531 | Jeffers | Aug 1972 | |
3805004 | Kondo | Apr 1974 | |
3957351 | Stockwell | May 1976 |
Number | Date | Country |
---|---|---|
1142394 | Feb 1969 | GBX |
Entry |
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Goldsmith, T. T., "Filters Aid Television", Radio-Craft, Jan. 1948, pp. 28-29. |
"Micromesh Filter", Kaiser Aerospace & Electronics Publication. |
Mancini, R. H., "High Contrast Filter System", IBM Tech. Disc. Bull., vol. 13, No. 5, Oct. 1970, pp. 1391-1392. |
Yeukin, A. Ye., "Method of Reducing . . . Elements"; Soviet J. of Opt. Tech., Feb. 1972, p. 115. |
Number | Date | Country | |
---|---|---|---|
Parent | 384033 | Jun 1982 |