Patent Grant
D324963
| Number | Name | Date | Kind |
|---|---|---|---|
| D162927 | Bloom | Apr 1951 | |
| D167248 | Becker | Jul 1952 | |
| D172098 | Knoll | May 1954 | |
| D177218 | Collins | Mar 1956 | |
| D180224 | Delynn | May 1957 | |
| D192009 | Deaton | Jan 1962 | |
| D223371 | Allen | Apr 1972 | |
| D298889 | LaCour | Dec 1988 | |
| D298890 | LaCour | Dec 1988 | |
| 1886766 | Ulrich | Nov 1932 | |
| 2306209 | Elofson et al. | Dec 1942 | |
| 2664331 | Glotfelter | Dec 1953 | |
| 2694614 | Dent | Nov 1954 | |
| 3079207 | Deaton | Feb 1963 | |
| 3862785 | Scheerhorn et al. | Jan 1975 | |
| 4258963 | Fusselman et al. | Mar 1981 | |
| 4323291 | Ball | Apr 1982 | |
| 4619486 | Hannah et al. | Oct 1986 | |
| 4798423 | LaCour | Jan 1989 |
