This is a continuation of application Ser. No. 08/081,994 filed 23 Jun. 1993 now abandoned.
Number | Name | Date | Kind |
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3953247 | Elhaus et al. | Apr 1976 | |
4549866 | Granville | Oct 1985 | |
4756685 | Davies et al. | Jul 1988 |
Entry |
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Metals Handbook, Heat Treating, 9th Edition, vol. 4, American Society for Metals, 1979, pp.486-487. |
Number | Date | Country | |
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Parent | 81994 | Jun 1993 |