TY - GEN AU - Salmerón Manzano, Esther María AU - Manzano Agugliaro, Francisco Rogelio PY - 2022 SN - 2411-5134 UR - http://hdl.handle.net/10835/13269 LA - en PB - MDPI TI - Low-Cost Inventions and Patents DO - 10.3390/inventions7010013 ER -