Number | Date | Country | Kind |
---|---|---|---|
5-179150 | Jul 1993 | JPX | |
6-147958 | Jun 1994 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3563897 | West | Feb 1971 | |
3763045 | Takamizawa et al. | Oct 1973 |
Entry |
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Patent Abstracts Of Japan, vol. 16, No. 347 (E-1240) 27 Jul. 1992 & JP-A-04 106 806 (Matsushita Electric Works) 8 Apr. 1991 -Abstract. |
WPI Patent Abstract corresponding to JP-B 49-15754. |