| Number | Name | Date | Kind |
|---|---|---|---|
| 2731321 | Thompson | Jan 1956 | |
| 2926978 | Mitchell | Mar 1960 | |
| 3326617 | Leland | Jun 1967 | |
| 3738728 | Eckard | Jun 1973 | |
| 3822924 | Lust | Jul 1974 | |
| 3980363 | Dean et al. | Sep 1976 | |
| 4061375 | Mertes | Dec 1977 | |
| 4121878 | Lokken | Oct 1978 | |
| 4502741 | DeVries et al. | Mar 1985 | |
| 4600255 | Dubarko | Jul 1986 |
| Number | Date | Country |
|---|---|---|
| 2019668 | Nov 1971 | DEX |
| 2603753 | Aug 1977 | DEX |
| Entry |
|---|
| "Foam-Filled Cushions for Sliding Trays", NASA Tech Briefs, Spring 1980. |