| Number | Date | Country | Kind |
|---|---|---|---|
| 7-198655 | Aug 1995 | JPX | |
| 7-297288 | Oct 1995 | JPX |
| Number | Name | Date | Kind |
|---|---|---|---|
| 5191429 | Rourke | Mar 1993 | |
| 5467203 | Kawata | Nov 1995 | |
| 5585936 | Eto et al. | Dec 1996 | |
| 5654807 | Miyaza | Aug 1997 |
| Entry |
|---|
| Fishman et al. The Book of Fax, Ventana Press, Inc, pp. 38-39, Dec. 1990. |