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US Patent: 518,646
Chain mortiser
Patentees:
Denis Parry (exact or similar names) - London, England
John Henry Hall (exact or similar names) - London, England

USPTO Classifications:
144/72

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Apr. 24, 1894

Patent Pictures: [ 1 | 2 ]
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