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1587949
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Patent Grant
1587949
References
Source
Patent Number
1,587,949
Date Filed
Not available
Date Issued
Tuesday, June 8, 1926
98 years ago
CPC
E01C23/0855 - moved rectilinearly
US Classifications
173 - Tool driving or impacting
175 - Boring or penetrating the earth
299 - Mining or in situ disintegration of hard material
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