| Manufacturer: | UNISONIC |
| Model: | 740 |
| AKA: | |
| Year: | 1975 |
| Display: | VCF (8+1) |
| Circuits: | |
| Dimensions: | 155x90x35 mm |
| Power type: | 6V-4xAA / Adapter |
| Origin: | Japan |
| S/N: | 013855 |
| Owner: | DEVIDTS Serge |
| Info: |
There's another version from the 740-model:
Has square-root, (Courtesy unknown):
Instructions ^
Case ^
Label (bottom) ^