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US Patent: 79,213
Improvement in Device for Holding Rotary Cutters while being Ground
Patentee: Henry Disston (exact or similar names) - Philadelphia, PA USPTO Classifications: 451/370, 451/374 Tool Categories: woodworking machines : specialty woodworking machines : tool making machines Assignees: None Manufacturer: Not known to have been produced Witnesses: W. H. Maurice A. H. Shoemaker	Patent Dates: Granted: Jun. 23, 1868 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen.
Description: Improvement of Stone's patent No. 54036. Frame is arranged to accept a rotary cutter with rear rollers and a vertically adjustable roller.

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