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US Patent: 2,931,659
Quick Change Tool Holder
Patentee: Raymond E. Novkov (exact or similar names) - Akron, Summit County, OH USPTO Classifications: 279/144, 279/35, 279/8, 279/89, 279/904, 403/321, 403/334 Tool Categories: metalworking machines : milling machines : milling machine tools Assignees: Portage Double-Quick, Inc. - Akron, Summit County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 12, 1958 Granted: Apr. 05, 1960 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Portage Double Quick, Inc.

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