 
                 Patent Grant
 Patent Grant
                     D266793
 D266793
                    | Number | Name | Date | Kind | 
|---|---|---|---|
| D177476 | Ludi | Apr 1956 | |
| 194485 | Van Riper | Aug 1877 | |
| D236511 | Bunger | Aug 1975 | |
| 695687 | Huxley | Mar 1902 | |
| 1282784 | Enholm | Oct 1918 | |
| 1294366 | Louden | Feb 1919 | |
| 1457850 | Neller | Jun 1923 | |
| 1459535 | Hird | Jun 1923 | |
| 2221046 | Gandrud | Nov 1940 | |
| 2310200 | Callis | Feb 1943 | |
| 3911869 | Lien | Oct 1975 |