Patent Grant
D327338
| Number | Name | Date | Kind |
|---|---|---|---|
| 733026 | Goldan | Jul 1903 | |
| 2119446 | Sholes | May 1938 | |
| 2269500 | Wildhack | Jan 1942 | |
| 2399643 | Kreiselman | May 1946 | |
| 2788001 | Brown | Apr 1957 | |
| 2891542 | Pentecost | Jun 1959 | |
| 3196866 | Adams | Jul 1965 | |
| 3356100 | Seeler | Dec 1967 | |
| 3964476 | Palleni | Jun 1976 | |
| 4037595 | Elam | Jul 1977 | |
| 4192301 | Hardwick | Mar 1980 | |
| 4320754 | Watson et al. | Mar 1982 | |
| 4333451 | Paluch | Jun 1982 | |
| 4501271 | Clifton et al. | Feb 1985 | |
| 4637384 | Schroeder | Jan 1987 | |
| 4821712 | Gossett | Apr 1989 | |
| 4919132 | Miser | Apr 1990 |
