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US Patent: 505,221
Machine for Buffing Metal Tubes
Patentee:
Thomas Harper (exact or similar names) - Brooklyn, Kings County, NY

USPTO Classifications:
451/189

Tool Categories:
metalworking machines : polishing machines
specialty machines : polishing and buffing machinery
specialty machines : tube making machines

Assignees:
William S. Hurley - Brooklyn, Kings County, NY
David Alexander - Brooklyn, Kings County, NY
Asa P. Meylert - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 05, 1892
Granted: Sep. 19, 1893

Patent Pictures:
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