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JP54142744 |
PURPOSE: To lay guide boards promptly and with ease in transporting a heavy vehicle along a passage formed by laying guide boards on a soft and weak ground, by making these guide boards with light wood and in a small size. CONSTITUTION: ...
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JP52048504 |
PURPOSE: Material for preventing the slip of wheels, for stopping the slip of wheels at braking, starting and acceleration, of which the adhesion coefficient does not be lowered even in a wet condition, not to mention in a dry condition.
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JP52029039 |
PURPOSE: To provide a device for removing a tire buried in mud ground.
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JP52027111 |
PURPOSE: In sander of locomative to feed sand on rails to improve adhering coefficient between the rails and wheels, scavenging device for sander pipe to prevent clogging of the pipe.
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JP51129017 |
PURPOSE: To provide a sand scatter control device providing proper sand scatter by scattering a fixed quantity of sannd intermittently every time railway vehicle finishes running a fixed distance.
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