Number | Name | Date | Kind |
---|---|---|---|
1899068 | Walsh et al. | Feb 1933 | |
2421079 | Narcus | May 1947 | |
2599710 | Hathaway | Jun 1952 | |
3339008 | MacArthur et al. | Aug 1967 | |
3343976 | Matlock | Sep 1967 | |
3546009 | Schneble, Jr. et al. | Dec 1970 | |
3610811 | O'Keefe | Oct 1971 | |
3851223 | Yonezuka et al. | Nov 1974 | |
3915809 | Wheatley | Oct 1975 |
Entry |
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"Printed Circuit Techniques" by R. J. Ryan in RCA Technical Notes, No. 768, Apr., 1968. |