| Brand: | Tandy |
| Model: | EC-4004 |
| Type: | Programmable scientific calculator |
| Batteries: | CR2025 x 1 |
| Lifetime: |
Introduced: unknown Terminated: unknown |
| Notes: | This programmable scientific calculator is equivalent to the Casio fx-3600p (Thanks Xavier Trevisani). |
| Picture: |
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©2006 Ernst Mulder