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E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
E01B27/06—Renewing or cleaning the ballast in situ, with or without concurrent work on the track
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FR25259D1921-05-021921-05-02Machine pour enlever les mauvaises herbes croissant sur le ballast des voies de chemins de fer
ExpiredFR25259E
(fr)