Puente de los Franceses (Madrid) Puente de los Franceses (Madrid) The Puente de los Franceses (Bridge of the Frenchmen) railway viaduct is located in Madrid, Spain. Comprising five semi-circular brick skew arches, it was built in the second half of the 19th century to carry the railway line from the north (Madrid - Venta de Baños - Irun) across the River Manzanares. The bridge is named after the nationality of the engineers who devised the project, who were of French origin. The bridge is also known as the French Bridge. The bridge was built between 1860 and 1862, along with other construction work on the
Madrid system Madrid Agreement were also members of the Madrid Protocol and many of the aspects of the Madrid Agreement ceased to have practical effect). The term 'Madrid Union' can be used to describe those jurisdictions party to either the Agreement or the Protocol (or both). The primary reason the protocol—which has been in operation since 1996 and has 100 members — is more popular than the agreement — which has been in operation for more than 110 years and has 55 members—is that the protocol introduced a number of changes to the Madrid system which significantly enhanced its usefulness to trademark