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2452760
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Patent Grant
2452760
References
Source
Patent Number
2,452,760
Date Filed
Not available
Date Issued
Tuesday, November 2, 1948
75 years ago
CPC
E21C35/043 - Protection against overload during transfer of machines for slitting or completely freeing the mineral from the seam
US Classifications
299 - Mining or in situ disintegration of hard material
180 - Motor vehicles
417 - Pumps
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