Number | Name | Date | Kind |
---|---|---|---|
3951748 | Devlin | Apr 1976 | |
4497899 | Armstrong et al. | Feb 1985 | |
4497900 | Abram et al. | Feb 1985 | |
4632901 | Valkirs et al. | Dec 1986 |
Number | Date | Country |
---|---|---|
173500 | Mar 1986 | EPX |
Entry |
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U.S. Ser. No. 181,465 filed 4/15/88 by Shih, Warren III and Smith-Lewis. |
U.S. Ser. No. 206,236 filed 6/13/88 by Snyder, Grogan and Sutton. |
U.S. Ser. No. 255,920 filed 10/7/88 by Mauck. |
U.S. Ser. No. 255,924 filed 10/7/88 by Pronovost and Gilbert. |