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US Patent: 64,477
Improvement in Bench-Planes Rocking Bed Blade Pitch Adjuster
Patentee: Benjamin A. Blandin (exact or similar names) - Charlestown, MA USPTO Classifications: 30/488 Tool Categories: woodworking tools : planes : plane adjustment mechanisms Assignees: None Manufacturer: A. W. Crossman - West Warren, MA Witnesses: M W Frothingham J B Crosby F Gould L B Kidder	Patent Dates: Granted: May 07, 1867 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Reynolds Patrick Leach's Inner Sanctum
Description: The patent claims a vertical threaded post and an adjusting screw that rocks the cutter back-and-forth to adjust the pitch.

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