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Bituminous pavement fatigue testing device
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Electrical control circuit
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Traffic actuated control system and apparatus
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Traffic actuated control system
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Traffic actuated control apparatus
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Electronic timing circuit
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Air flow cooling apparatus and drive therefor
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Road vehicle detector
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Road traffic detection and control system
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Traffic cycle selector
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Vehicle detector
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Cooling system
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Vehicle detector
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Electronic cycle computer
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Space resonant system
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Garage door operator with automatic latch
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Apparatus for detecting and measuring the speed of moving objects by means of radio waves
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Casing assembly for portable radar apparatus
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Traffic control system
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Traffic control system
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