Number | Name | Date | Kind |
---|---|---|---|
85956 | Pinkham | Jan 1869 | A |
933647 | Hunt | Sep 1909 | A |
4198090 | Gutman | Apr 1980 | A |
4638522 | Robertson | Jan 1987 | A |
Entry |
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Layne Kennedy, Figure 2 of Application showing Prior Art of Apparatus, Date unknown. |
Allsport, Figure 3 of Application showing Prior Art of Apparatus, Date unknown. |