Number | Name | Date | Kind |
---|---|---|---|
3382483 | Brothman et al. | May 1968 | |
3447085 | De Haas et al. | May 1969 | |
3541552 | Carlson | Nov 1970 | |
3656112 | Paull | Apr 1972 | |
3684964 | Bright et al. | Aug 1972 | |
3688271 | Rouse | Aug 1972 | |
3967264 | Whyte | Jun 1976 | |
4012734 | Jagoda et al. | Mar 1977 |
Entry |
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C. Clifford, "Six Decade Counter For Industrial Systems", New Electronics, vol. 8, No. 13, pp. 27, 30, Jun. 24, 1975. |