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2937773
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Information
Patent Grant
2937773
References
Source
Patent Number
2,937,773
Date Filed
Not available
Date Issued
Tuesday, May 24, 1960
64 years ago
CPC
E21D1/00 - Sinking shafts
B66B17/26 - for loading or unloading mining-hoist skips
B65G2812/069 - for vertical shaft transport
US Classifications
187 - Elevator, industrial lift truck, or stationary lift for vehicle
414 - Material or article handling
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