Number | Date | Country | Kind |
---|---|---|---|
53-84680 | Jul 1978 | JPX | |
53-85384 | Jul 1978 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2908072 | Johnson | Oct 1959 | |
3055007 | Bell | Sep 1962 | |
3557423 | Wolfe et al. | Jan 1971 | |
3615920 | Talento | Oct 1971 | |
4003764 | Wunning | Jan 1977 | |
4046601 | Hook | Sep 1977 | |
4145235 | Gondo et al. | Mar 1979 |
Entry |
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"Soft Nitriding Gives Hard Surface to Steel, Cast Iron", Iron Age, vol. 212, p. 33, Aug. 2, 1973. |
Metals Handbook, 8th ed., vol. 6, p. 599. |