Number | Name | Date | Kind |
---|---|---|---|
2491134 | Robb | Dec 1949 | |
3615924 | Swoboda | Oct 1971 | |
3660630 | Sunnen | May 1972 | |
4181845 | Bolton | Jan 1980 | |
4312685 | Riedl | Jan 1982 | |
4420346 | Belkin et al. | Dec 1983 |
Number | Date | Country |
---|---|---|
665105 | Jun 1963 | CAX |
3402969 | Aug 1984 | DEX |
1270328 | Nov 1986 | JPX |
767381 | Jan 1957 | GBX |
887506 | Jan 1962 | GBX |
940018 | Oct 1963 | GBX |
Entry |
---|
Metals Handbook, vol. 4, Heat Treating, pp. 502-503, .COPYRGT.1981. |