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US Patent: 127,132
Improvement in drilling-machines
Albert F. Prentice - Worcester, MA
Edward J. Worcester - Worcester, MA

USPTO Classifications:

Tool Categories:
metalworking machines : drilling and boring : drill presses
woodworking machines : wood drilling and boring : drill presses

Ira W. Jones - Worcester, MA
Vernon F. Prentice - Worcester, MA
Albert F. Prentice - Worcester, MA

E. N. Boynton - Worcester, MA

Thomas H. Dodge
Charles H. Burleigh

Patent Dates:
Granted: May 21, 1872

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for E. J. Worcester
"Vintage Machinery" entry for E. N. Boynton
The assignees constituted A. F. Prentice & Co., so presumably they sold this drill to E. N. Boynton. It is likely that A. F. Prentice & Co. manufactured this drill, and also likely that Boynton & Plummer did also.

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