| Number | Date | Country | Kind |
|---|---|---|---|
| 3404751 | Feb 1984 | DEX | |
| 3441436 | Oct 1984 | DEX |
| Number | Name | Date | Kind |
|---|---|---|---|
| 4441702 | Nagel et al. | Apr 1984 | |
| 4447167 | Euteneuer et al. | May 1984 | |
| 4449812 | Furuichi et al. | May 1984 |
| Number | Date | Country |
|---|---|---|
| 2939208 | Apr 1981 | DEX |
| 8302348 | Jul 1983 | IBX |
| 0175640 | Oct 1982 | JPX |
| Entry |
|---|
| Beuch, W. E. et al., "Compensating Armature Pressure Roll Device, IBM Technical Disclosure Bulletin, vol. 18, No. 7, Dec. 1975, pp. 2242-2243. |