Number | Date | Country | Kind |
---|---|---|---|
5-094460 | Apr 1993 | JPX | |
6-029966 | Feb 1994 | JPX | |
6-074818 | Apr 1994 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2379470 | Baird | Jul 1945 | |
2756310 | Galbraith | Jul 1956 | |
2965746 | Cresswell | Dec 1960 | |
3025387 | Kinney | Mar 1962 | |
3038059 | Hinrichs | Jun 1962 |
Number | Date | Country |
---|---|---|
0042311 | Dec 1981 | EPX |
3330335 | Mar 1985 | DEX |
5-96376 | Apr 1919 | JPX |
56-142880 | Oct 1981 | JPX |
Entry |
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Patent Abstracts of Japan, vol. 16, No. 137 (M-1231), Apr. 7, 1992, and JP-A-03 297 574 (Babcock Hitachi KK), Dec. 27, 1991, *abstract*. |
Patent Abstract of Japan, vol. 13, No. 193 (M-822), May 9, 1989, and JP-A-01 018 582 (Masami Fujimoto) Jan. 23, 1989, *abstract*. |