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US Patent: 249,306
Mortising-machine
Patentee:
Frank S. Clarkson (exact or similar names) - Baltimore, MD

USPTO Classifications:
144/69, 144/84

Tool Categories:
woodworking machines : joint making machines : mortising machines
woodworking machines : wood drilling and boring : mortising machines

Assignees:
Frank B. Sloan - Baltimore, MD
Frank S. Clarkson - Baltimore, MD

Manufacturer:
Joseph Clarkson & Son - Baltimore, MD

Witnesses:
John T. Maddox
R. D. Williams
Patent Dates:
Applied: Aug. 22, 1881
Granted: Nov. 08, 1881

Patent Pictures:
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Vintage Machinery entry for Joseph Clarkson & Son

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