Number | Name | Date | Kind |
---|---|---|---|
814503 | Andresen et al. | Mar 1906 | |
2543427 | Warne | Feb 1951 | |
3217917 | George | Nov 1965 | |
3433378 | Ross | Mar 1969 | |
3581927 | Langdon | Jun 1971 | |
3684120 | Beeman | Aug 1972 | |
3826395 | Montgomery | Jul 1974 | |
4269319 | Rubens | May 1981 | |
4336891 | Smith | Jun 1982 | |
4349056 | Heino | Sep 1982 | |
4416381 | Swartwout | Nov 1983 | |
4566508 | Bowyer | Jan 1986 | |
4566509 | Szajna | Jan 1986 |
Number | Date | Country |
---|---|---|
0109704 | May 1984 | EPX |
Entry |
---|
Research Disclosure, No. 106, Feb. 1973, Disclosed Anonymously. |