Number | Date | Country | Kind |
---|---|---|---|
1-166968 | Jun 1989 | JPX | |
1-166969 | Jun 1989 | JPX | |
2-68229 | Mar 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3585176 | Gerritsen | Jun 1971 | |
3884766 | Bir | May 1975 | |
4079074 | Sanchez | Mar 1978 | |
4129703 | Kamath | Dec 1978 | |
4129704 | Sanchez | Dec 1978 |
Number | Date | Country |
---|---|---|
59-93725 | May 1984 | JPX |
59-176320 | May 1984 | JPX |
63-32089 | Jun 1988 | JPX |
Entry |
---|
Derwent Publications Ltd., Abstract Nos. 85-041648/07, 85-052369/09, 85-058417/10, 85-233823/38, 84-031346/06 and 85-252596/41. |