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US Patent: 121,985
Improvement in stamp-guides
Patentee: Henry Bolthoff (exact or similar names) - Central City, CO USPTO Classifications: 277/526, 384/29 Tool Categories: specialty machines : ore processing apparatus Assignees: None Manufacturer: Hendrie & Bolthoff Manufacturing & Supply CO. - Denver, CO Witnesses: D. D. Lake T. T. Stokes	Patent Dates: Granted: Dec. 19, 1871 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Hendrie & Bolthoff Mfg. & Supply Co.

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