Number | Date | Country | Kind |
---|---|---|---|
3538762 | Oct 1986 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
1524661 | Kurowski | Feb 1925 | |
2224083 | Myers | Dec 1940 | |
3160549 | Caldwell et al. | Dec 1964 | |
4318452 | Reitner | Mar 1982 |
Number | Date | Country |
---|---|---|
1182862 | Dec 1964 | DEX |
Entry |
---|
I.B.M. Technical Disclosure Bulletin, vol. 25, No. 10, Mar. 83, "Platen Assembly", C. Claassen, P. Q. Le and R. Travieso. |