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1884438
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Patent Grant
1884438
References
Source
Patent Number
1,884,438
Date Filed
Not available
Date Issued
Tuesday, October 25, 1932
91 years ago
CPC
B23Q11/0866 - using covering means adaptable to the workpieces
B24B55/04 - Protective covers for the grinding wheel
US Classifications
451 - Abrading
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