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2725213
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Information
Patent Grant
2725213
References
Source
Patent Number
2,725,213
Date Filed
Not available
Date Issued
Tuesday, November 29, 1955
69 years ago
CPC
E21B19/008 - Winding units, specially adapted for drilling operations
B66D1/02 - Driving gear
B66D2700/0125 - Motor operated winches
US Classifications
254 - Implements or apparatus for applying pushing or pulling force
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