| Number | Name | Date | Kind |
|---|---|---|---|
| D. 290833 | Walters | Jul 1987 | |
| D. 292388 | Wecker | Oct 1987 | |
| D. 319036 | Fingerle | Aug 1991 | |
| D. 320382 | Fingerle | Oct 1991 | |
| D. 372011 | Tyler | Jul 1996 | |
| D. 420622 | Hillmake et al. | Feb 2000 | |
| D. 430092 | Burgio, Jr. | Aug 2000 | |
| 1727755 | Dickinson | Sep 1929 | |
| 1742497 | Dickinson | Jan 1930 | |
| 1793068 | Dickinson | Feb 1931 | |
| 2158593 | Scrimgeour | May 1939 | |
| 2371086 | Watson et al. | Mar 1945 | |
| 2677374 | Burnside | May 1954 | |
| 2755801 | Morando | Jul 1956 | |
| 2764978 | Everett | Oct 1956 | |
| 2811155 | Dunnican | Oct 1957 | |
| 3491757 | Arce | Jan 1970 | |
| 4043334 | Brown et al. | Aug 1977 | |
| 4187848 | Taylor | Feb 1980 | |
| 4266815 | Cross | May 1981 | |
| 4597758 | Aalto et al. | Jul 1986 | |
| 4636201 | Ambrose et al. | Jan 1987 | |
| 4676530 | Nordgren et al. | Jun 1987 | |
| 4747835 | Sandhaus | May 1988 | |
| 4774772 | Vetter et al. | Oct 1988 | |
| 4781701 | Geprags | Nov 1988 | |
| 4834715 | Hanifl | May 1989 | |
| 4874381 | Vetter | Oct 1989 | |
| 5069670 | Vetter et al. | Dec 1991 | |
| 5100010 | Waters | Mar 1992 | |
| 5104379 | Nakamura et al. | Apr 1992 | |
| 5135496 | Vetter et al. | Aug 1992 | |
| 5135513 | Meyer et al. | Aug 1992 | |
| 5184742 | DeCaprio et al. | Feb 1993 | |
| 5405340 | Fageol et al. | Apr 1995 | |
| 5437650 | Larkin et al. | Aug 1995 | |
| 5624402 | Imbert | Apr 1997 | |
| 5785691 | Vetter et al. | Jul 1998 | |
| 5833653 | Vetter et al. | Nov 1998 | |
| 6027482 | Imbert | Feb 2000 |
| Number | Date | Country |
|---|---|---|
| 0 022 576 A1 | Jan 1981 | EP |
| 0 462 355 A1 | Dec 1991 | EP |
| 0 589 379 A1 | Mar 1994 | EP |
| 387123 | Feb 1908 | FR |
| Entry |
|---|
| ProTech Catalog, Revision Feb. 1999. |