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CEMENTIFERA ITALIANA SOC
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CEMENTIFERA ITALIANA SOC
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Publication of FR457606ApublicationCriticalpatent/FR457606A/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
E01B3/32—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement
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Engineering & Computer Science
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FR457606D1912-04-111913-04-10Perfectionnements aux traverses pour chemins de fer et tramways
ExpiredFR457606A
(fr)