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US Patent: 147,535
Improvement in circular files
Patentee:
Baxter D. Whitney - Winchendon, MA

USPTO Classifications:
76/45

Tool Categories:
metalworking machines : grinders : sharpening machines : saw sharpening machines

Assignees:
None

Manufacturer:
Baxter D. Whitney & Son, Inc. - Winchendon, MA

Witnesses:
J. B. Woodruff
S. Kemon

Patent Dates:
Applied: Nov. 19, 1873
Granted: Feb. 17, 1874

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Baxter D. Whitney & Son, Inc.

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