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US Patent: 88,143
Improvement in cutters for tonguing and grooving
Patentee: Dewitt C. Devall (exact or similar names) - New York, NY USPTO Classifications: 144/229 Tool Categories: woodworking machines : machine and tool cutters : cutters Assignees: John B. Schenck - Matteawan, NY Manufacturer: Schenck Machine Co. - Mattawean, NY Witnesses: Unknown	Patent Dates: Granted: Mar. 23, 1869 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Schenck Machine Co.

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