Number | Date | Country | Kind |
---|---|---|---|
3-359812 | Dec 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4365319 | Takemae | Dec 1982 | |
4547867 | Reese | Oct 1985 | |
4727516 | Yoshida | Feb 1988 | |
4881200 | Urai | Nov 1989 | |
4885720 | Miller | Dec 1989 | |
5278794 | Tanaka | Jan 1994 |
Entry |
---|
IBM Technical Disclosure Bulletin vol. 19 No. 5 Oct. 1976. |