FR390795A - Dispositif de propulsion en trajectoires différentes de deux véhicules intervertissant à l'arrivée leur position au départ
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Dispositif de propulsion en trajectoires différentes de deux véhicules intervertissant à l'arrivée leur position au départ
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THOMPSON-GRAVES SALSBURY
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THOMPSON-GRAVES SALSBURY
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A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
A63G7/00—Up-and-down hill tracks; Switchbacks
FR390795A1907-05-181908-05-18Dispositif de propulsion en trajectoires différentes de deux véhicules intervertissant à l'arrivée leur position au départ
ExpiredFR390795A
(fr)
Dispositif pour prévenir les tamponnements des trains, donner le signal d'arret, annoncer les gares et les arrivées des trains, leur direction, leur parcours et les distances parcourues