Patent Grant
D318719
| Number | Name | Date | Kind |
|---|---|---|---|
| D167662 | Ulrich | Sep 1952 | |
| D214272 | Pautrie | May 1969 | |
| D254505 | Parsons et al. | Mar 1980 | |
| D847718 | Ambos | Mar 1987 | |
| 1011284 | Litz et al. | Dec 1911 | |
| 1175438 | Gzupkaytie | Mar 1916 | |
| 1175532 | Lambkin | Mar 1916 | |
| 1261687 | Brandon | Apr 1918 | |
| 1527804 | Kunst et al. | Feb 1925 | |
| 1594224 | Strongson | Jul 1926 | |
| 2444414 | Anderson et al. | Jul 1948 | |
| 3314698 | Owens | Apr 1967 | |
| 3345086 | Wallace | Oct 1967 | |
| 3937498 | Weinhold | Feb 1976 | |
| 4111410 | Welcker | Sep 1978 | |
| 4543993 | Calvin et al. | Oct 1985 | |
| 4596415 | Blatt | Jun 1986 | |
| 4618171 | Fahl | Oct 1986 | |
| 4733692 | Kotake et al. | Mar 1988 |
