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1882906
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Information
Patent Grant
1882906
References
Source
Patent Number
1,882,906
Date Filed
Not available
Date Issued
Tuesday, October 18, 1932
91 years ago
CPC
B25D17/02 - Percussive tool bits
B25D17/08 - Means for retaining and guiding the tool bit
E01C23/0926 - with power-driven tools
E21B10/02 - Core bits
US Classifications
125 - Stone working
175 - Boring or penetrating the earth
299 - Mining or in situ disintegration of hard material
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