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US Patent: 204,945
Improvement in pulverizing apparatus
Patentee: Henry Bolthoff (exact or similar names) - Central City, CO USPTO Classifications: 241/137, 241/179, 241/80 Tool Categories: specialty machines : ore processing apparatus Assignees: Henry Bolthoff - Central City, CO Charles F. Hendrie - Central City, CO Manufacturer: Hendrie & Bolthoff Manufacturing & Supply CO. - Denver, CO Witnesses: Edward A. Spooner Frank B. Hart	Patent Dates: Applied: Apr. 23, 1878 Granted: Jun. 18, 1878 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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