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2336992
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Information
Patent Grant
2336992
References
Source
Patent Number
2,336,992
Date Filed
Not available
Date Issued
Tuesday, December 14, 1943
80 years ago
CPC
E21C29/10 - Cable or chain co-operating with a winch or the like on the machine
US Classifications
299 - Mining or in situ disintegration of hard material
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