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US Patent: 85,770
Improvement in Swage for Saw Teeth
Patentee:
Joseph Sperrey - Philadelphia, PA

USPTO Classifications:
76/56

Tool Categories:
woodworking tools : handsaws : saw sharpening tools : saw swages

Assignees:
Henry Disston - Philadelphia, PA

Manufacturer:
Not known to have been produced

Witnesses:
A. H. Shoemaker
John G. Baker

Patent Dates:
Granted: Jan. 12, 1869

Patent Pictures:
USPTO pdf tiff
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Description:
Swage with wedge shaped dies with beveled corners that can be made cheaply and easily.

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