Number | Name | Date | Kind |
---|---|---|---|
1716822 | Knorr et al. | Jun 1929 | |
2500582 | Smith et al. | Mar 1949 | |
3362997 | Bolhofer | Jan 1968 | |
3363003 | Bolhofer | Jan 1968 | |
3452081 | Sprague | Jun 1969 | |
3453317 | Marbet et al. | Jul 1969 | |
4163661 | Jikihara | Aug 1979 |
Number | Date | Country |
---|---|---|
1162767 | Aug 1969 | GBX |
Entry |
---|
Derwent Abstract 67524Y-Japan Kokai, 77 94 241, filed Jan. 27, 1976, published Aug. 9, 1977. |
Derwent Abstract 33642C-Japan Kokai, 80 43, 048, filed Sep. 22, 1978, published Mar. 26, 1980. |
Derwent Abstract 73563A-Japan Kokai, 78 101 320, filed Feb. 17, 1977, published Sep. 4, 1978. |
Derwent Abstract 73622A-Japan Kokai, 101, 525, filed Feb. 17, 1977, published Sep. 5, 1978. |