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US Patent: 2,146
Casting Screws
Patentee:
John Luther (exact or similar names) - Warren, Bristol County, RI

USPTO Classifications:
164/342, 249/59, 249/95

Tool Categories:
specialty tools : foundry casting apparatus

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Jun. 26, 1841

Patent Pictures:
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