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US Patent: 402,521
Machine for grooving lumber
Patentee: Julian T. Grzybowski (exact or similar names) - Grand Rapids, MI USPTO Classifications: 144/129, 144/89 Tool Categories: woodworking machines : cutter head machines : matchers Assignees: James Lowe - Grand Rapids, MI R. E. Butterworth - Grand Rapids, MI Julian T. Grzybowski - Grand Rapids, MI Manufacturer: Butterworth & Lowe - Grand Rapids, MI Witnesses: Harvey Joslin Edward Lowe	Patent Dates: Applied: Nov. 01, 1887 Granted: Apr. 30, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Butterworth & Lowe

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