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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) Google Patents Report data errors or omissions to steward Jeff Joslin

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