Number | Name | Date | Kind |
---|---|---|---|
1077818 | Eagar | Nov 1913 | |
2766569 | Strother et al. | Oct 1956 | |
2908220 | Eichenbaum et al. | Oct 1959 | |
3287015 | Preuss et al. | Nov 1966 | |
3888478 | Alderman et al. | Jun 1975 | |
4002117 | Ritzerfeld | Jan 1977 | |
4037535 | Lehmann et al. | Jul 1977 |
Number | Date | Country |
---|---|---|
488217 | Jul 1938 | DE2 |
918640 | Jul 1949 | DEX |
350490 | Jan 1961 | CHX |
520271 | Jul 1973 | SUX |
4683 | Jan 1912 | GBX |
576267 | Mar 1946 | GBX |
Entry |
---|
"Document Gate and Feed Control Mechanism", IBM Technical Disclosure Bulletin, vol. 11, No. 2, Jul. 1968, p. 186. |