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B61G1/00—Couplings comprising interengaging parts of different shape or form and having links, bars, pins, shackles, or hooks as coupling means
B61G1/32—Couplings comprising interengaging parts of different shape or form and having links, bars, pins, shackles, or hooks as coupling means with horizontal bolt or pin
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Mechanical Engineering
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Train Traffic Observation, Control, And Security
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