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Interlocking device
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Issue date Apr 23, 2019
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East Japan Railway Company
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Kazuhisa Echizen
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B61 - RAILWAYS
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System comprising a processor
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Westinghouse Brake and Signal Holding Limited
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Terence M. George
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G06 - COMPUTING CALCULATING COUNTING
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2903573
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Patent number 2,903,573
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B61 - RAILWAYS
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G01 - MEASURING TESTING
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G01 - MEASURING TESTING
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882143
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G01 - MEASURING TESTING
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G01 - MEASURING TESTING
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G01 - MEASURING TESTING
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606450
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G01 - MEASURING TESTING
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G01 - MEASURING TESTING
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G01 - MEASURING TESTING
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505420
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G01 - MEASURING TESTING
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505419
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Patent number 505,419
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Issue date Sep 19, 1893
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G01 - MEASURING TESTING