U.S. patent number D410,657 [Application Number D/075,579] was granted by the patent office on 1999-06-08 for grooved earth working tool. This patent grant is currently assigned to H&L Tooth Company. Invention is credited to Charles Clendenning, Brian L. Launder.
United States Patent | D410,657 |
Launder , et al. | June 8, 1999 |
Inventors: | Launder; Brian L. (Tulsa, OK), Clendenning; Charles (Broken Arrow, OK) |
---|---|
Assignee: | H&L Tooth Company (Tulsa,
OK) |
Appl. No.: | D/075,579 |
Filed: | September 3, 1997 |
Current U.S. Class: | D15/29 |
Current International Class: | 1504 |
Field of Search: | ;D15/10,22-26,28,29,32 ;37/446,450,452,455,456 |
D251431 | March 1979 | Klett et al. |
D336476 | June 1993 | Garman |
3371437 | March 1968 | Wilson et al. |
4980980 | January 1991 | Schadov et al. |
5465512 | November 1995 | Livesay et al. |
5709043 | January 1998 | Jones et al. |
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