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1664369
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Information
Patent Grant
1664369
References
Source
Patent Number
1,664,369
Date Filed
Not available
Date Issued
Tuesday, March 27, 1928
96 years ago
CPC
B24C7/0092 - the abrasive material being fed by mechanical means
A61C3/025 - Instruments acting like a sandblast machine
Y10S29/084 - Vacuum exhaust type
Y10S29/089 - Gas entrained liquid supply
US Classifications
433 - Dentistry
029 - Metal working
451 - Abrading
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