Number | Name | Date | Kind |
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122908 | Perry | Jan 1872 | A |
1879246 | Hogue | Sep 1932 | A |
2216813 | Goldschmidt | Oct 1940 | A |
3100677 | Frank et al. | Aug 1963 | A |
3338016 | Bailey | Aug 1967 | A |
4401729 | Claussen et al. | Aug 1983 | A |
20020104590 | Harenski et al. | Aug 2002 | A1 |
Number | Date | Country |
---|---|---|
60-026615 | Feb 1985 | JP |
3-287716 | Dec 1991 | JP |
Entry |
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The Making, Shaping and Treating of Steel, 10th edition, pp 1031-1039, Dec. 1989. |