Number | Date | Country | Kind |
---|---|---|---|
6-151874 | Jul 1994 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2962741 | Petrillo | Dec 1960 | |
3939514 | Cook | Feb 1976 | |
4208760 | Dexter et al. | Jun 1980 | |
5081733 | Kudo | Jan 1992 | |
5317778 | Kudo et al. | Jun 1994 |
Number | Date | Country |
---|---|---|
0526245A1 | Feb 1993 | EPX |
2488157 | Feb 1982 | FRX |
0122262 | Oct 1978 | JPX |
1646628 | May 1991 | SUX |
Entry |
---|
IBM, Technical Disclosure Bulletin, vol. 17, No. 2, Jul. 1974, (Carufe). |