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2567107
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Information
Patent Grant
2567107
References
Source
Patent Number
2,567,107
Date Filed
Not available
Date Issued
Tuesday, September 4, 1951
73 years ago
CPC
A01B63/114 - to achieve a constant working depth
A01B63/06 - operated mechanically by tractor motor
US Classifications
172 - Earth working
037 - Excavating
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