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US Patent: 4,839,957
Method of applying a door hinge
Patentee: Erline S. Jangaard (exact or similar names) - Madeira Beach, FL USPTO Classifications: 29/434, 29/525.11, 414/806, 81/57.23 Tool Categories: woodworking machines : specialty woodworking machines Assignees: Ruvo Automation Corp. - Largo, FL Manufacturer: Merrick Machine Co. - Alda, NE Ruvo Automation Corp. - Largo, FL Witnesses: Unknown	Patent Dates: Applied: Apr. 06, 1988 Granted: Jun. 20, 1989 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Merrick Machine Co. Vintage Machinery entry for Ruvo Automation Corp.
Description: This is part of a machine for manufacturing pre-hung doors.

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