| Number | Name | Date | Kind |
|---|---|---|---|
| 1435889 | Barker | Nov 1922 | |
| 2219076 | Marzilli | Oct 1940 | |
| 2447908 | Hoots | Aug 1948 | |
| 2517072 | Zimmer | Aug 1950 | |
| 3385547 | West | May 1968 | |
| 3418681 | Szabo | Dec 1968 | |
| 3431586 | Bush | Mar 1969 | |
| 3438467 | Milette et al. | Apr 1969 | |
| 4221354 | Kempkers | Sep 1980 | |
| 4444344 | Marcus et al. | Apr 1984 | |
| 4523701 | Armbruster | Jun 1985 | |
| 4524890 | Fulton | Jun 1985 | |
| 4548328 | Brauning | Oct 1985 | |
| 4645106 | Pawl | Feb 1987 | |
| 4720028 | Takemura et al. | Jan 1988 | |
| 4863081 | Gabbert | Sep 1989 | |
| 4872568 | Lehman | Oct 1989 | |
| 4881673 | Kapp | Nov 1989 | |
| 4936491 | Calad et al. | Jun 1990 | |
| 5020845 | Falcoff et al. | Jun 1991 | |
| 5072837 | Rosch | Dec 1991 | |
| 5107996 | Whittaker | Apr 1992 | |
| 5176304 | Palmer | Jan 1993 |
| Entry |
|---|
| Aplicant's Exhibit A--no date. |