Number | Date | Country | Kind |
---|---|---|---|
54/157996 | Dec 1979 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2906645 | Carpenter et al. | Sep 1959 | |
3152930 | Foster | Oct 1964 | |
3634148 | Shin et al. | Jan 1972 | |
3640780 | Stanley | Feb 1972 | |
3785882 | Jackson | Jan 1974 | |
4160705 | Arendt et al. | Jul 1979 | |
4177092 | Thursby | Dec 1979 |
Entry |
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The Making, Shaping and Treating of Steel, United States Steel, 7th ed. 1957 pp 412-419. |