This is a division, of application Ser. No. 615,962, filed Sept. 23, 1975 now U.S. Pat. No. 3,983,007.
The invention described herein was made in the course of, or under, Contract AT(26-1)-539 with the U.S. Energy Research and Development Administration.
Number | Name | Date | Kind |
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2819774 | Schmidt et al. | Jan 1958 | |
3053700 | Kulp | Sep 1962 | |
3104542 | Scoggins | Sep 1963 | |
3285296 | Ishimara et al. | Nov 1966 | |
3372274 | Landolt | Mar 1968 | |
3748905 | Fletcher | Jul 1973 | |
3965747 | McCorkle | Jun 1976 | |
3983007 | Au et al. | Sep 1976 |
Number | Date | Country | |
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Parent | 615962 | Sep 1975 |