Photo(s)
![](/images/devices/unisonic-931-0.jpg)
![](/images/devices/unisonic-931-1.jpg)
![](/images/devices/unisonic-931-2.jpg)
Device Info
Category | Calculators |
Manufacturer | Unisonic |
Model | 931 |
Year | 1975 |
Memories
Did you have a 931? Did you write reviews or interview people about it? Work on this device at Unisonic? Share your story to add human context to this device. Thx! :)