Number | Date | Country | Kind |
---|---|---|---|
10-49221 | Mar 1998 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4078094 | Katzen | Mar 1978 | |
4126439 | Stekoll | Nov 1978 | |
4615839 | Seto et al. | Oct 1986 | |
4961936 | Rubin | Oct 1990 | |
5158595 | Stillman | Oct 1992 |
Number | Date | Country |
---|---|---|
62-084007 | Apr 1987 | JPX |
WO 9724933 | Jul 1997 | WOX |
Entry |
---|
Derwent Abstract, AN 97-503814/97, CN 1123266, May 29, 1996. |