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FLORENT COLLARD
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FLORENT COLLARD
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Publication of FR14654EpublicationCriticalpatent/FR14654E/en
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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FR14654D1908-12-081911-08-09
Improvement in the laying of railway tracks by means of reinforced concrete sleepers
ExpiredFR14654E
(en)