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US Patent: 2,398,540
Drawn-in collet chuck
Patentee: Joseph N. Landau (exact or similar names) - New York, NY USPTO Classifications: 279/53 Tool Categories: work holding : collets and collet holders Assignees: None Manufacturer: Landau Machine & Drill Press Co. - New York, NY Witnesses: Unknown	Patent Dates: Applied: Oct. 19, 1943 Granted: Apr. 16, 1946 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Landau Machine & Drill Press Co.

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