Number | Name | Date | Kind |
---|---|---|---|
2273715 | Lonskey et al. | Feb 1942 | |
2754859 | Ocenasek | Jul 1956 | |
2764190 | Howard | Sep 1956 | |
2771103 | Odlum et al. | Nov 1956 | |
2806493 | Gaskell | Sep 1957 | |
4206910 | Biesemeyer | Jun 1980 | |
4521006 | Waters | Jun 1985 | |
4600184 | Ashworth | Jul 1986 |