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Luis Soria & Hernandez Soc
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Luis Soria & Hernandez Soc
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Application filed by Luis Soria & Hernandez SocfiledCriticalLuis Soria & Hernandez Soc
Application grantedgrantedCritical
Publication of FR445469ApublicationCriticalpatent/FR445469A/fr
E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
E01B3/42—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone combined with inserts of wood or other material
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Engineering & Computer Science
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Architecture
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Civil Engineering
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Structural Engineering
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FR445469D1911-04-291912-04-23Traverse mixte de ciment armé et bois
ExpiredFR445469A
(fr)