Patent Grant
D398424
| Number | Name | Date | Kind |
|---|---|---|---|
| 137980 | Vanstone | Apr 1873 | |
| D244786 | Dryden | Jun 1977 | |
| D273429 | Kilham | Apr 1984 | |
| D287651 | Scott | Jan 1987 | |
| 1286002 | Hoffman | Nov 1918 | |
| 1469340 | Shortell | Oct 1923 | |
| 1520607 | Smith | Dec 1924 | |
| 1527360 | Harless | Feb 1925 | |
| 1558316 | Tipple | Oct 1925 | |
| 1666322 | West | Apr 1928 | |
| 2383732 | Niersbach | Aug 1945 | |
| 2464644 | Kwash | Mar 1949 | |
| 2583203 | Bergeron | Jan 1952 | |
| 2584383 | Feck | Feb 1952 | |
| 2584782 | Beckman | Feb 1952 | |
| 2631567 | Gilson | Mar 1953 | |
| 2667858 | Cussotti | Feb 1954 | |
| 2789534 | Landgraf | Apr 1957 | |
| 3372676 | Williams | Mar 1968 |
