Patent Grant
D417825
| Number | Name | Date | Kind |
|---|---|---|---|
| D213630 | Hoxie et al. | Mar 1969 | |
| D257210 | Bonnes | Oct 1980 | |
| D267468 | Simms | Jan 1983 | |
| D296410 | Abbott | Jun 1988 | |
| D328553 | Norton et al. | Aug 1992 | |
| D360564 | Tisbo et al. | Jul 1995 | |
| D363653 | Tisbo et al. | Oct 1995 | |
| 366099 | Hinchman | Jul 1887 | |
| 930660 | Gifford | Aug 1909 | |
| 967270 | Tiedt | Aug 1910 | |
| 1042352 | Kohler | Oct 1912 | |
| 1260276 | Miller | Mar 1918 | |
| 3104908 | McDonald | Sep 1963 | |
| 3177026 | Cowan | Apr 1965 | |
| 4149744 | Bonnes | Apr 1979 | |
| 4247141 | Grint | Jan 1981 | |
| 4280727 | Germain | Jul 1981 | |
| 4655494 | Eads et al. | Apr 1987 | |
| 4991324 | Fine et al. | Feb 1991 | |
| 5228734 | Pollastro | Jul 1993 | |
| 5419600 | Tisbo et al. | May 1995 |
| Number | Date | Country |
|---|---|---|
| 234243 | Dec 1959 | AUX |
| Entry |
|---|
| Hardware Age, p. 220, shovel circled at bottom right of page, Aug. 1988. |
| Union Fork and Hoe Catalog, Dec. 1986, p. 18, Shovel, Item No. 4. |
