| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | Ten's complement circuit | US63014556 | 1956-12-24 | US2920820A | 1960-01-12 | JACOB GOLDBERG; KAUTZ WILLIAM H; ADAMS MILTON B |
| 2 | Electronic circuits for complementing binary-coded decimal numbers | US40112653 | 1953-12-30 | US2799450A | 1957-07-16 | ROYCE JOHNSON ROBERT |
| 3 | Electronic circuit for complementing binary coded decimal numbers | US15458161 | 1961-11-24 | US3207888A | 1965-09-21 | BROCE THOMAS C |
| 4 | Code converter system | US33757253 | 1953-02-18 | US2798667A | 1957-07-09 | SPIELBERG ARNOLD M; SUBLETTE IVAN H |
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