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1660137
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Information
Patent Grant
1660137
References
Source
Patent Number
1,660,137
Date Filed
Not available
Date Issued
Tuesday, February 21, 1928
96 years ago
CPC
B23Q5/02 - Driving main working members
B23Q2705/023 - General aspects of driving a boring spindle
Y10T29/5105 - Drill press
Y10T74/19242 - Combined gear and clutch
Y10T74/19307 - Selective
Y10T408/6774 - including plural speed drive
US Classifications
074 - Machine element or mechanism
029 - Metal working
408 - Cutting by use of rotating axially moving tool
470 - Threaded, headed fastener, or washer making: process and apparatus
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