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3367717
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Information
Patent Grant
3367717
References
Source
Patent Number
3,367,717
Date Filed
Not available
Date Issued
Tuesday, February 6, 1968
56 years ago
CPC
E21F13/068 - Special adaptations for use at the junction of the working face with the gallery
E21C27/34 - Machine propelled along the working face by cable or chain
E21C35/12 - along a conveyor for the cut mineral
US Classifications
299 - Mining or in situ disintegration of hard material
198 - Conveyors: power-driven
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