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US Patent: 790,417
Pneumatic Separator
Patentee: Dow L. Adelsperger (exact or similar names) - Springfield, Clark County, OH USPTO Classifications: 209/137, 209/141, 209/250, 209/37, 209/39 Tool Categories: specialty machines : separators Assignees: Foos Manufacturing Co. - Springfield, Clark County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 09, 1903 Granted: May 23, 1905 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Foos Manufacturing Co.

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