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3408110
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Information
Patent Grant
3408110
References
Source
Patent Number
3,408,110
Date Filed
Not available
Date Issued
Tuesday, October 29, 1968
55 years ago
CPC
E21C35/043 - Protection against overload during transfer of machines for slitting or completely freeing the mineral from the seam
E21C27/22 - by rotary drills with breaking-down means, e.g. wedge-shaped drills
US Classifications
299 - Mining or in situ disintegration of hard material
464 - Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts
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