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Material handling apparatus
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Dual mast apparatus for storage and retrieval vehicles
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Braking apparatus and method for storage and retrieval vehicles
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Automated guided vehicle top disposed towing apparatus
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Apparatus for moving rolls from a loading station to an unwinding station and for moving empty roll cores from the unwinding station to the loading station
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Vertical drive apparatus for storage and retrieval vehicles
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Downward compatible AGV system and methods
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Proportional position-sensing system for an automatic guided vehicle
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Combination drive-wheel mechanism and travel-sensor mechanism
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System for sensing arrival of an automatic guided vehicle at a wire
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Update marker system for naviagtion of an automatic guided vehicle
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Mast to base connection for a storage and retrieval machine
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Brake mechanism for a storage and retrieval machine
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Wheel mounting assembly for a storage and retrieval machine
