Number | Name | Date | Kind |
---|---|---|---|
RE26275 | Stevens | Oct 1967 | |
533242 | Starkweather | Jan 1895 | |
1266055 | Sackermann | May 1918 | |
1690090 | Hendricks | Oct 1928 | |
2019502 | Osgood | Nov 1935 | |
3271061 | Miller | Sep 1966 | |
3774945 | Lee et al. | Nov 1973 | |
3870352 | Engler et al. | Mar 1975 | |
3931934 | Smith | Jan 1976 | |
4012062 | Gropp, Sr. | Mar 1977 | |
4093690 | Murray | Jun 1978 | |
4099688 | Jayne | Jul 1978 | |
4767063 | Wall et al. | Aug 1988 |
Entry |
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"Car Device Spreads Grit on Icy Roads", The Washington Post, Feb. 11, 1961. |