Browsing by Author Sarmiento Peñafiel, Walter
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| Issue Date | Title | Author(s) |
|---|---|---|
| 2004 | Máquina estampadora manual de cuatro brazos "PULPO" | Garcés Freire, Ángel; Sarmiento Peñafiel, Walter; Carbonell Valdez, Alejandro; Tamayo Acosta, Edwin, Director |