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US Patent: 109,881
Improved Process for concave/vex Circular blades
Patentee:
Thomas S. Disston (exact or similar names) - Philadelphia, PA

USPTO Classifications:
72/324, 72/364, 76/112

Tool Categories:

Assignees:
Thomas S. Disston - Philadelphia, PA
Henry Disston & Son - Philadelphia, PA

Manufacturer:
Not known to have been produced

Witnesses:
A. H. Shoemaker
H. Howson

Patent Dates:
Granted: Dec. 06, 1870

Patent Pictures:
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Report data errors or omissions to steward Russ Allen.
"Vintage Machinery" entry for Henry Disston & Sons

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