Number | Name | Date | Kind |
---|---|---|---|
4409434 | Basset et al. | Oct 1983 | |
4583011 | Pechar | Apr 1986 | |
4766516 | Ozdemir et al. | Aug 1988 | |
4922136 | Ueda | May 1990 | |
4952824 | Kamuro | Aug 1990 |
Entry |
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Patent Abstracts of Japan, vol. 014, No. 463, Oct. 8, 1990, & JP-A-21 88 944 (Sharp K.K.) Jul. 25, 1990 abstract. |