Improvements introduced in the shoes and footwear in general and the manufacturing method of them. (Machine-translation by Google Translate, not legally binding)
ES304564A1
Improvements in the manufacture and assembly of heels in female shoes with pre-modeled inside structure (Machine-translation by Google Translate, not legally binding)
US3333353A
Manufacture of footwear
ES291707A1
Footwear and the production thereof
ES276956A1
Improvements in the manufacture of rear reinforcements for the shoes (Machine-translation by Google Translate, not legally binding)
US3117331A
Method of manufacturing shoes
ES268325A1
Improvements in and relating to the manufacture of shoes and other footwear
ES256242A2
Improvements introduced in the manufacture of female shoes (Machine-translation by Google Translate, not legally binding)
ES255249A1
Improvements introduced in the manufacture of heels for female shoes (Machine-translation by Google Translate, not legally binding)
ES254082A2
Improvements introduced in the manufacture of female shoes (Machine-translation by Google Translate, not legally binding)
ES252426A1
Improvements introduced in the manufacture of female shoes (Machine-translation by Google Translate, not legally binding)
