| Number | Name | Date | Kind |
|---|---|---|---|
| 1819545 | Delp | Aug 1931 | |
| 2462667 | O'Neal | Feb 1949 | |
| 2939742 | Dardarian et al. | Jun 1960 | |
| 3823977 | Fioravanti | Jul 1974 | |
| 4805956 | Saunders | Feb 1989 | |
| 4819982 | Eyb | Apr 1989 |
| Number | Date | Country |
|---|---|---|
| 0650980 | Aug 1985 | CHX |
| 783345 | Sep 1957 | GBX |
| Entry |
|---|
| Automotive Industries, Feb. 1990, page. 52, "Let the Sun Shine In!". |