Number | Name | Date | Kind |
---|---|---|---|
3716864 | Stover | Feb 1973 | |
4308497 | Rodgers | Dec 1981 | |
4415852 | Ashley et al. | Nov 1983 | |
4685065 | Braun et al. | Aug 1987 | |
4751455 | Ayres | Jun 1988 | |
4760448 | Wittrock et al. | Jul 1988 |
Entry |
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Sencore Product Brochure, "The FS74A Channelizer Sr..TM.", Form 4245. |
Sadelco Inc. Model 600B Digital Signal Level Meter Preliminary Specification Sep. 12, 1990, 2 pages. |