Number | Name | Date | Kind |
---|---|---|---|
4258418 | Heath | Mar 1981 | |
4860193 | Bentley et al. | Aug 1989 | |
5056010 | Huang | Oct 1991 | |
5133078 | Minassian et al. | Jul 1992 | |
5179552 | Chao | Jan 1993 | |
5189665 | Niehaus et al. | Feb 1993 | |
5210829 | Bitner | May 1993 | |
5214760 | Hammond et al. | May 1993 | |
5224213 | Dieffenderfer et al. | Jun 1993 | |
5226040 | Noble, III et al. | Jul 1993 | |
5235682 | Mitsuhira et al. | Aug 1993 | |
5249271 | Hopkinson et al. | Sep 1993 | |
5412780 | Rushton | May 1995 |
Number | Date | Country |
---|---|---|
0 247 317 | Jan 1987 | EPX |
Entry |
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European Search Report--No. EP 95 30 2515--17 Aug. 1995. |
Patent Abstracts of Japan--vol. 016, No. 222 (P-1359)--25 May 1992 & JP-A-04044177 (SEIKO INSTR. INC.) 13 Feb. 1992. |