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US Patent: 218,249
Machine for Scraping Tubes Before and After Soldering
Patentee:
Ezra S. Fields - Waterbury, New Haven County, CT

USPTO Classifications:
409/298, 409/303, 409/346

Tool Categories:
metalworking machines

Assignees:
Booth & Haydens - Waterbury, New Haven County, CT

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: May 02, 1878
Granted: Aug. 05, 1879

Patent Pictures:
USPTO pdf tiff
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