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US Patent: 72,582
Handsaw
Patentee:
John F. Allen (exact or similar names) - New York, NY

USPTO Classifications:
83/837

Tool Categories:
woodworking tools : handsaws : backsaws : dovetail saws

Assignees:
None

Manufacturer:
Harvey W. Peace Co. - Brooklyn, NY

Witnesses:
William Derfer
Henry E. Roeder

Patent Dates:
Granted: Dec. 24, 1867

Patent Pictures: [ 1 | 2 ]
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Report data errors or omissions to steward Russ Allen.
Vintage Machinery entry for Porter-Allen Engine Co.
Description:
Handsaw with two separate cutting planes. Forward teeth cut the side of the dovetail and upon reaching the desired depth the blade is inserted further to cut the bottom of the dovetail.

The inventor was co-founder of the firm that pioneered the high-speed steam engine, Porter-Allen Engine Co.

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