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1896105
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Information
Patent Grant
1896105
References
Source
Patent Number
1,896,105
Date Filed
Not available
Date Issued
Tuesday, February 7, 1933
91 years ago
CPC
E21B4/06 - Down-hole impacting means
Y10S425/107 - Connection
US Classifications
175 - Boring or penetrating the earth
173 - Tool driving or impacting
425 - Plastic article or earthenware shaping or treating: apparatus
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