Number | Name | Date | Kind |
---|---|---|---|
1859597 | Nason | May 1932 | |
3063041 | Quade et al. | Nov 1962 | |
3712703 | Newdigate | Jan 1973 | |
3855524 | Crawford | Dec 1974 | |
3961372 | Brock et al. | Jun 1972 | |
4358802 | Jarsen | Nov 1982 |
Entry |
---|
IBM/TDB vol. 3, No. 12, May 1961, p. 6, "Pneumatic Drum" by Auyang. |