Patent Grant
D355351
| Number | Name | Date | Kind |
|---|---|---|---|
| D23321 | Hoffman et al. | May 1894 | |
| 39033 | Pecina et al. | Sep 1975 | |
| D206849 | Guthrie | Jan 1967 | |
| 1163657 | Hadaway, Jr. | Dec 1915 | |
| 3820540 | Hirtz et al. | Jun 1974 | |
| 3873806 | Schossow | Mar 1975 | |
| 4007737 | Paluch | Feb 1977 | |
| 4051205 | Grant | Sep 1977 | |
| 4108953 | Rocco | Aug 1978 | |
| 4192836 | Bartscher et al. | Mar 1980 | |
| 4201204 | Rinne et al. | May 1980 | |
| 4225542 | Wall et al. | Sep 1980 | |
| 4564748 | Gupton | Jan 1986 | |
| 4567353 | Aiba | Jan 1986 | |
| 4593670 | Nara et al. | Jun 1986 | |
| 4618462 | Fisher | Oct 1986 | |
| 4652408 | Montgomery | Mar 1987 | |
| 4676237 | Wood et al. | Jun 1987 | |
| 4708831 | Elsworth et al. | Nov 1987 | |
| 4753758 | Miller | Jun 1988 | |
| 4910384 | Silver | Mar 1990 | |
| 5062145 | Zwaan et al. | Oct 1991 | |
| 5108054 | Degand | Apr 1992 | |
| 5316245 | Ruckwardt | May 1994 |
