Patent Grant
D278166
| Number | Name | Date | Kind |
|---|---|---|---|
| D170150 | Cowap | Aug 1953 | |
| D173658 | Jones | Dec 1954 | |
| D244098 | Kilham | Apr 1977 | |
| 1749497 | McClastian | Mar 1930 | |
| 2634705 | Mayes | Apr 1953 | |
| 2826171 | Piel | Mar 1958 | |
| 2891508 | Bower | Jun 1959 | |
| 3901192 | Adams | Aug 1975 | |
| 4030451 | Miller | Jun 1977 | |
| 4361116 | Kilham | Nov 1982 | |
| 4462337 | Kilham | Jul 1984 |
