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CA Patent: CA-211,956
Thread cutting machine
Patentee: Charles F. Williams (exact or similar names) - Erie, PA USPTO Classifications: Tool Categories: metalworking machines : metal threading machines metalworking machines : metal threading machines : pipe threading machines Assignees: None Manufacturer: Williams Tool Corp. of Canada, Ltd. - Brantford, ON Canada Williams Tool Corp. - Erie, PA Witnesses: Unknown	Patent Dates: Granted: May 24, 1921 Patent Pictures: CIPO Data Espacenet patent Report data errors or omissions to steward Jeff Joslin "Vintage Machinery" entry for John H. Hall & Sons | Williams Tool Corp.
Description: This is the Canadian equivalent of US patent 1,318,519.

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