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US Patent: 1,666,135
Belt-tensioning device for threading machines and the like
Patentee: Leslie S. Hall (exact or similar names) - Erie, PA USPTO Classifications: 248/666, 474/114 Tool Categories: metalworking machines : metal threading machines : pipe threading machines metalworking machines : metal threading machines Assignees: Williams Tool Corp. - Erie, PA Manufacturer: Williams Tool Corp. - Erie, PA Witnesses: Unknown	Patent Dates: Applied: Feb. 18, 1924 Granted: Apr. 17, 1928 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Williams Tool Corp.

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