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US Patent: 70,424
Improved Device for Sharpening Saw Teeth
Patentee:
Henry Disston - Philadelphia, PA

USPTO Classifications:
76/36

Tool Categories:
woodworking tools : handsaws : saw sharpening tools

Assignees:
None

Manufacturer:
Henry Disston & Sons - Philadelphia, PA

Witnesses:
John White
W. J. R. Delany

Patent Dates:
Granted: Nov. 05, 1867

Patent Pictures:
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"Vintage Machinery" entry for Henry Disston & Sons
Description:
File and gauge for sharpening reciprocating saw teeth. The initial finished tooth serves to establish the next tooth.

This device would be utilized with larger cross cut saws and within reciprocating sawmills.

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