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US Patent: 479,173
Spool-boring mechanism
Patentee:
John M. Parker (exact or similar names) - Pawtucket, RI

USPTO Classifications:
142/20, 144/142, 221/175, 408/53, 82/125

Tool Categories:
metalworking machines : drilling and boring
woodworking machines : specialty woodworking machines : spool or bobbin machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Jul. 19, 1892

Patent Pictures:
USPTO (New site tip)
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