Number | Name | Date | Kind |
---|---|---|---|
2775581 | Neier et al. | Dec 1956 | |
3062806 | Biedermann et al. | Nov 1962 | |
3081167 | Goulston et al. | Mar 1963 | |
3086005 | Idelson | Apr 1963 | |
3135730 | Heyna et al. | Jun 1964 | |
3196014 | Rogers | Jul 1965 | |
3218164 | Green et al. | Nov 1965 | |
3230082 | Land et al. | Jan 1966 | |
3299041 | Green et al. | Jan 1967 | |
3307947 | Idelson et al. | Mar 1967 | |
3336287 | Idelson et al. | Aug 1967 | |
3443939 | Bloom et al. | May 1969 | |
3453107 | Idelson | Jul 1969 | |
3544545 | Idelson | Dec 1970 | |
3551406 | Idelson | Dec 1970 | |
3563739 | Idelson | Feb 1971 | |
3597200 | Idelson | Aug 1971 | |
4014700 | Fujita et al. | Mar 1977 | |
4076529 | Fleckenstein et al. | Feb 1978 |
Number | Date | Country |
---|---|---|
938867 | Oct 1963 | GBX |
Entry |
---|
Research Disclosure, No. 15654, Apr. 1977, pp. 22-39. |