Number | Name | Date | Kind |
---|---|---|---|
566750 | Gardner | Sep 1896 | |
1750278 | Moyer | Mar 1930 | |
1870801 | Engstrom | Aug 1932 | |
2184545 | Collier | Dec 1939 | |
2198831 | Moyer | Apr 1940 | |
2720119 | Sherman | Oct 1955 | |
2978073 | Soddy | Apr 1961 | |
2984524 | Franzen | May 1961 | |
3007745 | Even | Nov 1961 | |
3113647 | Tuttle | Dec 1963 | |
3374005 | Donlon et al. | Mar 1968 | |
3576352 | Sato | Apr 1971 | |
3603650 | Miller | Sep 1971 | |
3606497 | Gilles | Sep 1971 | |
3774465 | Brasseur | Nov 1973 | |
3774979 | Harris | Nov 1973 | |
3788155 | Cigala et al. | Jan 1974 | |
3790230 | Jespersen | Feb 1974 | |
3996810 | Groff | Dec 1976 | |
3997217 | Bandet et al. | Dec 1976 | |
4083247 | Umezaki et al. | Apr 1978 | |
4203633 | Hare | May 1980 | |
4349234 | Hartmann | Sep 1982 | |
4350196 | Hampshire | Sep 1982 | |
4538860 | Edwards et al. | Sep 1985 |
Number | Date | Country |
---|---|---|
737756 | Jul 1943 | DE2 |
1939240 | Feb 1971 | DEX |
1939239 | Sep 1977 | DEX |
47745 | Jun 1937 | FRX |
Entry |
---|
Frados, J., Plastics Engineering Handbook; Reinhold, 4th Ed.: N.Y. 1976, pp. 62-63 and 462-469. |