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FRA

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Modern US boxcar showing automatic coupler, air brake hose and grab bars, all mandated by the Safety Appliance Act. The bent rod at far left allows the coupler to be disengaged by a worker standing safely at the side of the car, per Section 2 of the Act.

安全装置法（Safety Appliance Act）が変えた米国鉄道の安全性と歴史

安全装置法Safety Appliance Act米国鉄道史自動連結器
2026年8月7日続きを読む →