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US Patent: 282,049
Grinding Machine
Patentee:
Andrew Campbell (exact or similar names) - Brooklyn, Kings County, NY

USPTO Classifications:
451/160, 451/287, 451/365

Tool Categories:
stoneworking : stone dressing machines

Assignees:
John McLoughlin - New York, NY
Edmund McLoughlin - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 30, 1883
Granted: Jul. 31, 1883

Patent Pictures:
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