Number | Date | Country | Kind |
---|---|---|---|
2-132659 | May 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4943532 | Kawai et al. | Jul 1990 |
Number | Date | Country |
---|---|---|
339550 | Nov 1989 | EPX |
Entry |
---|
Derwent Publication Limited, London, GB; Database WPIL, Accession No. 87-053000, Week 8708; & JP-A-62007795 [kao corp] Jan. 14, 1987. |
Derwent Publication Limited, London GB; Database WPIL, Accession No. 86-314274, Week 8648; & JP-A-61231094[Lion corp.] Oct. 15, 1986. |