Number | Date | Country | Kind |
---|---|---|---|
50-113762 | Sep 1975 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
1054901 | Bosch et al. | Mar 1913 | |
1104384 | Potter et al. | Jul 1914 | |
3244480 | Johnson et al. | Apr 1966 | |
3728436 | Krikorov | Apr 1973 | |
3855395 | Cutler | Dec 1974 | |
3959446 | Mazdiyasni et al. | May 1976 |
Number | Date | Country |
---|---|---|
1,121,293 | Jul 1968 | GBX |
Entry |
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Komeya et al. "J. of Materials Science" 10/1975, pp. 1243-1246. |