Number | Name | Date | Kind |
---|---|---|---|
3278580 | Worsley | Oct 1966 | |
3455886 | Versnel | Jul 1969 | |
3531415 | Reymore | Sep 1970 | |
3585185 | Levis | Jun 1971 | |
3715383 | Praetzel | Feb 1973 | |
3823176 | Levis | Jul 1974 | |
3869502 | Papa | Mar 1975 | |
3929866 | Baldino | Dec 1975 | |
4144395 | Murphy | Mar 1979 |
Entry |
---|
Pape et al., "J. Cellular Plastics", Nov. 1968, pp. 438-442. |