Number | Date | Country | Kind |
---|---|---|---|
58-81534 | May 1983 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
1687034 | Newell | Oct 1928 | |
1803720 | Miner | May 1931 | |
3061482 | Grant | Oct 1962 | |
3069759 | Grant et al. | Dec 1962 | |
3143789 | Iler et al. | Aug 1964 | |
3352637 | Heymer et al. | Nov 1967 | |
3522017 | Barfield | Jul 1970 | |
3765867 | Evans et al. | Oct 1973 | |
3884676 | Nadkarni et al. | May 1975 | |
3901689 | Pelton | Aug 1975 | |
4191556 | Rothblatt | Mar 1980 | |
4192672 | Moskowitz et al. | Mar 1980 | |
4278622 | Suh | Jul 1981 | |
4484943 | Miura et al. | Nov 1984 |
Entry |
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European Search Report EP 84 10 5251. |