US Patent: 1,135,974
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Multiple-spindle drilling-machine
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Patentee:
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Clarence J. Wetsel (exact or similar names) - Chicopee, MA |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Granted: |
Apr. 13, 1915 |
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Jeff Joslin
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Description: |
"Broadly, the invention consists in means for exerting a direct pressure of the feeding head in axial alignment with the feed screw." |
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