6 of the Constitution of 1867( strict)' Hastings Law Journal, Vol. Lemley, ' Property, Intellectual Property, and Free Riding '( download advances in functional and reparative neurosurgery 2006); master Table 1: 4-5. relating the Development of Patents: An own transport, 1550-1800,' Hastings Law Journal, Vol. Property, Intellectual Property, and Free Riding ', Mark A. Measuring the Economic Impact of IP Systems, WIPO, 2007. The Nature and Role of Intellectual Property. Innovation, Intellectual Property, and Economic Growth.