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US Patent: AI28
Making Wood Screws
Patentee:
Henry Crum (exact or similar names) - Clarkstown, NY

USPTO Classifications:
279/108

Tool Categories:
woodworking machines : specialty woodworking machines : wood threading machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Nov. 21, 1839

Patent Pictures: [ 1 | 2 ]
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Description:
Possibly additional illustrations for Crum's November 16, 1839 patent (1411).

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