Number | Date | Country | Kind |
---|---|---|---|
4-172474 | Jun 1992 | JPX | |
4-210527 | Aug 1992 | JPX | |
5-005687 | Jan 1993 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2961364 | Smith et al. | Nov 1960 | |
3580882 | Nielson et al. | May 1971 | |
3652491 | Nielsen et al. | Mar 1972 |
Number | Date | Country |
---|---|---|
0349828 | Jan 1990 | EPX |
2229721 | Dec 1974 | FRX |
2251611 | Jun 1975 | FRX |
2457892 | Jun 1975 | DEX |
62-74905 | Apr 1987 | JPX |
62-74906 | Apr 1987 | JPX |
62-259818 | Nov 1987 | JPX |
Entry |
---|
European Search Report dated Dec. 20, 1993. |
Communication dated Jan. 5, 1994. |