Keywords
Fuentes, sujetos y objeto del derecho, obligaciones, contratos, derechos reales, títulos valores: letra de cambio, pagaré y cheque, propiedad industrial: marcas, patentes, competencia desleal, sociedades mercantiles, personalistas, anónimas, limitadas, insolvencia, concurso de acreedores, créditos privilegiados, Sources of Law; legal subject and object, obligations, contracts, rights in rem, securities: bill of exchange, promissory note and check, intellectual property: brands, patent, unfair competition, corporations, close corporations, public and private companies, insolvency, insolvency proceeding, preferential credits.