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US Patent: 2,903,916
Apparatus for preventing vibration of boring bars
Patentee: Carlstedt Ragnar Leonard (exact or similar names) - Cincinnati, OH USPTO Classifications: 82/173, 82/904 Tool Categories: metalworking machines : boring and turning machines Assignees: R. K. LeBlond Machine Tool Co. - Cincinnati, OH Manufacturer: R. K. LeBlond Machine Tool Co. - Cincinnati, OH Witnesses: Unknown	Patent Dates: Applied: Feb. 27, 1957 Granted: Sep. 15, 1959 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for R. K. LeBlond Machine Tool Co.
Description: Guide bushing arrangement for long slender boring bars in a boring machine.

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