Number | Date | Country | Kind |
---|---|---|---|
62-196130 | Aug 1987 | JPX | |
62-198938 | Aug 1987 | JPX | |
62-302797 | Nov 1987 | JPX | |
62-184767[U]JPX | Dec 1987 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2123713 | Clark et al. | Jul 1938 | |
2285136 | Abendroth | Jun 1942 | |
2756373 | Houtz et al. | Jul 1956 | |
3270254 | Cohn | Aug 1966 | |
3299325 | Wagener et al. | Jan 1967 | |
3551756 | Frekko | Dec 1970 | |
3566203 | Maguire et al. | Feb 1971 | |
4593343 | Ross | Jun 1986 | |
4764181 | Nakano et al. | Aug 1988 |
Number | Date | Country |
---|---|---|
15023 | Feb 1981 | JPX |
15024 | Feb 1981 | JPX |
Entry |
---|
IBM Technical Disclosure Bulletin vol. 9 No. 9 Feb. 1967 p. 1115. |