Number | Name | Date | Kind |
---|---|---|---|
3340096 | Mann et al. | Sep 1967 | |
4029518 | Matsutani et al. | Jun 1977 | |
4062102 | Lawrence et al. | Dec 1977 |
Number | Date | Country |
---|---|---|
1333593 | Oct 1973 | GBX |
Entry |
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Ritter; E. S., "Recent Advances in Components of Space Power Systems", 1976, p. 141, Fig. 4. |