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US Patent: 1,936,112
Pipe threading apparatus
Patentee: James Valtin Jardine (exact or similar names) - Hespeler, ON Canada USPTO Classifications: 408/104, 408/174, 470/188, 470/76 Tool Categories: Assignees: None Manufacturer: A. B. Jardine & Co., Ltd. - Hespeler, ON Canada Witnesses: Unknown	Patent Dates: Applied: Mar. 16, 1931 Granted: Nov. 21, 1933 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for A. B. Jardine Co.

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