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US Patent: 362,268
Machine for Turning Insulator Pins
Patentee: Lewis D. Frost (exact or similar names) - Minneapolis, Hennepin County, MN USPTO Classifications: 142/35 Tool Categories: specialty machines : insulator pin making machinery Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 28, 1886 Granted: May 03, 1887 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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