Number | Name | Date | Kind |
---|---|---|---|
2061595 | Sherman | Nov 1936 | |
2845019 | Stiefel | Jul 1958 | |
3712607 | Ziegler | Jan 1973 | |
4530689 | Ringer | Jul 1985 | |
4743131 | Atwell | May 1988 |
Number | Date | Country |
---|---|---|
3531420 | Mar 1987 | DEX |
60-0061278 | Apr 1985 | JPX |
2176770A | Jan 1987 | GBX |
Entry |
---|
"Fan-Fold Paper Rack", David, IBM Technical Bulletin, vol. 4, No. 1, Jun. 1961. |