| Brochure on Epson Accusembler, publication date unknown, but assumed to be prior to the Japanese priority application date of Sep. 30, 1991 of the present application. |
| Brochure on Yamaha YK540, YK640, YK740, YK840, publication date unknown, but assumed to be prior to the Japanese priority application date of Sep. 30, 1991 of the present application. |
| Brochure on SRX-4CH, publication date unknown, but assumed to be prior to the Japanese priority application date of Sep. 30, 1991 of the present application. |