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US Patent: 4,795,291
Method for achieving interchangeability of tool inserts
Patentee: Kenneth L. March (exact or similar names) - York, PA USPTO Classifications: 279/156, 279/904, 408/1R, 409/131 Tool Categories: metalworking machines : drilling and boring : tapping machines Assignees: ETTCO Tool & Machine Co., Inc. - York, PA Manufacturer: ETTCO Tool Co., Inc. - Brooklyn, NY Witnesses: Unknown	Patent Dates: Applied: Mar. 31, 1987 Granted: Jan. 03, 1989 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for ETTCO Tool Co., Inc.
Description: This patent provides improvements on patent 2,338,626 to more consistently align the tool insert.

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