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Priority to ES129179ApriorityCriticalpatent/ES129179A1/es
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ES129179A1932-12-301932-12-30Un procedimiento para la fabricación de suelas de calzado con material procedente de cubiertas de neumáticos desechados.
ExpiredES129179A1
(es)
Procedimiento para la fabricación de calzados protectores llamados chanclos, de zapatos de tejido con suelas de caucho y de calzados equivalentes en caucho.