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US Patent: 150,678
Improvement in handsaw handles
Patentee:
Christopher Eisenhardt - Philadelphia, PA

USPTO Classifications:
30/525

Tool Categories:
woodworking tools : handsaws : saw handles

Assignees:
Henry Disston - Philadelphia, PA
Hamilton Disston - Philadelphia, PA
Albert Disston - Philadelphia, PA

Manufacturer:
Henry Disston & Sons - Philadelphia, PA

Witnesses:
Wm. H. Wright
John A. Neff

Patent Dates:
Granted: May 12, 1874

Patent Pictures:
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"Vintage Machinery" entry for Henry Disston & Sons
Description:
Advertised as a element of Disston and Sons' New Patent Skew Back Hand Saws. The design facilitates the use of the thumb of the left hand to assist in sawing, especially ripping.

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