Number | Name | Date | Kind |
---|---|---|---|
2683708 | Dickey et al. | Jul 1954 | |
3619108 | Peter et al. | Nov 1971 | |
3632565 | Angliker et al. | Jan 1972 | |
3637653 | Brachel et al. | Jan 1972 | |
3639384 | Weaver et al. | Feb 1972 | |
3658784 | Lange | Apr 1972 | |
3821194 | Peter et al. | Jun 1974 | |
4087420 | Heinrich et al. | May 1978 | |
4105653 | Brouard et al. | Aug 1978 | |
4111930 | Meybeck | Sep 1978 |
Number | Date | Country |
---|---|---|
2028457 | Dec 1970 | DEX |
2004131 | Aug 1971 | DEX |
2613595 | Oct 1976 | DEX |
1060240 | Mar 1967 | GBX |
1428115 | Mar 1976 | GBX |
1448782 | Sep 1976 | GBX |
Entry |
---|
Derwent Japanese Patents Report, 5, No. 42, p. 2:6, (11/22/66). |