| Number | Name | Date | Kind |
|---|---|---|---|
| 258604 | Richardson | May 1882 | |
| 1269225 | Sciannamea | Jun 1918 | |
| 1348073 | Almy | Jul 1920 | |
| 2643167 | Wade | Jun 1953 | |
| 2988413 | Bergen | Jun 1961 | |
| 3070416 | Post | Dec 1962 | |
| 3078133 | Schauer | Feb 1963 | |
| 3936110 | Meggs et al. | Feb 1976 | |
| 4258963 | Fusselman et al. | Mar 1981 | |
| 4938364 | Stadelman et al. | Jul 1990 | |
| 5005925 | Diehl | Apr 1991 | |
| 5020867 | McManus | Jun 1991 | |
| 5403082 | Kramer | Apr 1995 |
| Number | Date | Country |
|---|---|---|
| 1176839 | Apr 1959 | FRX |
| Entry |
|---|
| Brochure entitled "Clipper/CS--1" from New Space, Inc. (A Division of Gilbert International, Inc.), .COPYRGT.1994 [Known to Applicants in Apr. 1993]. |
| Brochure entitled "Sligh" , from Homeworks. |